Problem 3 - A college algebra teacher want to know whether there is .pdf

•

0 likes•2 views

Problem 1. The lifetime of a device of type A is Exponentially distributed with mean 10 (years) while the lifetime of a device of type B has a Gamma distribution with parameters (cid:11) = 2 and (cid:21) = 1=10. It is known that 40% of the devices in the factory are of type A and the remaining 60% are of type B. Let X be the lifetime of a randomly chosen device. (a) Compute the mean and the variance of X. Solution 2.Exponentially distributed MTBF = 500 h t = 600 h MTBF = 1/? ? = 1/MTBF = 2*10^-3 fr/hr R(t) = e^-?t R(600) = e^-2*10^-3*600 R(600) =0.30119 = 30.119% --> Probability of successfull/survive R(T+t) = R(t) R(T+100) = R(100) R(100) = e^-2*10^-3*100 R(100) = 0.81873 = 81.873 Probability of failure, U(100) = 1 - R(100) U(100) = 0.18127 = 18.873 %.

Education

Problem 3 - A college algebra teacher want to know whether there is a negative relationship
between
number of times a student is absent from class and performance in class. At the end of the
semester, he
ranks each of his 35 students on two variables, assigning a rank of 1 to the student with the most
absences and a rank of 1 to the student with the highest class rank (See accompanying data). Do
a one
tailed Spearman Rank Correlation test at alpha=0.01 of the null and alternative hypotheses:
Ho: Class performance has no rank correlation with number of absences.
Ha: Class performance has a negative rank correlation with number of absences.
Absences Performance
10.5 25
17.5 11
28 17
24 18
9 33
33.5 35
2 1
19 5
17.5 22
1 34
35 3
7.5 27
25 12
10.5 4
33.5 10
3 26
22 19
27 13
7.5 6
29 29
15.5 28
20 16
4.5 32

12 24
31 2
13 23
32 9
6 30
30 21
21 15
14 7
4.5 31
26 20
15.5 8
23 14
a) Find the value of the test statistic
b) Find the critical value (from the appropriate table)
c) State the statistical decision
d) State the decision in term of the problem
Solution
(a) The test statistic is -0.311
(b) the critical value is -0.430
(c) Since -0.311 is larger than -0.43, we do not reject Ho.
(d) So we can not conclude that Class performance has a negative rank correlation with number
of absences.

More from ajantaopt

Problem 11 in Chapter 15 examined the TV-viewing habits of adopted .pdf

ajantaopt

Problem 3-9 After plotting demand for four periods, an emergency room manager has concluded that a trend- adjusted exponential smoothing model is appropriate to predict future demand. The initial estimate of trend is based on the net change of 30 for the three periods from 1 to 4, for an average of +10 units. Use ?=.5 and ?=.1, and TAF of 250 for period 5. Obtain forecasts for periods 6 through 10. (Round your intermediate calculations and final answers to 2 decimal places.) After plotting demand for four periods, an emergency room manager has concluded that a trend- adjusted exponential smoothing model is appropriate to predict future demand. The initial estimate of trend is based on the net change of 30 for the three periods from 1 to 4, for an average of +10 units. Solution 6 263.30 7 272.89 8 281.53 9 290.78 10 298.72.

Problem httpi.imgur.comLFdvjnJ.jpg1SolutionAssumtions of.pdf

ajantaopt

problem 24.4b please help PROBLEM 24.4B Hans Enterprises is a large producer of birdseed. During June, the company produced 160 Computing and Journalizing Cost Variances 60 batche of crow bait. Each batch weighs 1,000 pounds. To produce this quantity of output, the purchased and used 170,000 pounds of direct materials at a cost of $816,000. It also incured á labor costs of $20,000 for the 2.500 hours worked by employees on the crow bait crew turing overhead incurred at the crow bait plant during June totaled $4.200, of which also incurred direct Man $3,100 was )-pound batch of crow bait is as considered fixed. Hans\'s standard cost information for each 1,000-pound batch of crow bait is follows: Direct materials standard price Standard quantity allowed per batch Direct labor standard rate Standard hours allowed per batch . $5.00 per pound 1,025 pounds $8.25 per hour . .. . .. . ...15 direct labor hours $3,200 per month . . . . .150 batches per month $10.00 per batch . . .. . Normal level of production .. . Variable overhead application rate Fixed overhead application rate .. . ($3,300+150 batches) . Total overhead application rate 22.00 per batch $32.00 per batch Solution Material Price variance StandardPrice of material Actual Cost Variance AQ 170000*5 Given 850000 816000 34000 Favorable Variance Quantity Variance Standared Rate*SQ =5*1025*160 Actual Q *standard rate =170000*5 Variance 820000 850000 -30000 Unfavorable Variance Labor rate Variance Standared Labor Cost Actual Labor Cost Variance 8.25*2500 Given 20625 20000 625 Favorable Variance Efficiency Variance Standared Hour *standared rate Actual Hour * Standard rate Variance 19800 20625 -825 Unfavorable Variance Mnaufacturing Overhead spending Variance standard Variable +fixed overhead Given 4800 4200 600 Favorable Variance Volume Variance 4800 5120 320 Favorable Variance DR CR Work in Progress 820000 Quantity Variance 30000 Material Price variance 34000 Direct Material 816000 Work in Progress 19800 Efficiency Variance 825 Labor rate Variance 625 Direct labor 20000 Work in Progress 4800 Mnaufacturing Overhead spending Variance 600 Manufacturing Overhead 4200 Finished goods 844600 Work in Progress 844600 over applied overhead 600 Cost of goods sold 600.

Problem 8-9A certain investment requires an initial outlay of $12 .pdf

ajantaopt

Problem 6. Bag 1 has 2 red chips and 4 white chips. Bag 2 has 3 red .pdf

ajantaopt

Problem 16 in Chapter 11 described a study examining the effect of eating oatmeal regularly the effect of eating oatmeal regularly on cholesterol. Cholesterol was measured before and after adding oatmeal to the diet of a sample of n = 9 participants. for this sample, cholesterol scores averaged MD = 16 points lower with the oatmeal diet with SS = 538 for the difference scores. Use the data to estimate how much effort oatmeal would have on the cholesterol level for this general population. Make a point estimate and a 95% confidence interval estimate of the population mean difference. Solution Given mean=16, s^2=SS/(n-1)=538/8= 67.25 a point estimate= 16 a=0.05, |t(0.025,df=n-1=8)|=2.31 (check student t table) So 95% CI is xbar±t*[s^2/n] --> 16±2.31*sqrt(67.25/9) --> (9.685531, 22.31447).

Problem 5At a constant interest rate of 15, compounded annually, .pdf

ajantaopt

Problem 12-9A ODGERS INC. Comparative Balance Sheets December 31 Assets 2014 2013 $ 155,944 $ 93,412 169,454 73,340 217,125 198,501 54,812 50,180 266,340 210,370 550,050 468,025 (96,500 ) (100,360 ) $1,317,225 $993,468 Liabilities and Stockholders’ Equity $ 196,860 $ 129,889 31,845 40,530 212,300 281,780 424,600 337,750 451,620 203,519 $1,317,225 $993,468 ODGERS INC. Income Statement Data For the Year Ended December 31, 2014 $749,728 $261,438 23,951 89,745 52,650 9,129 14,475 451,388 $ 298,340 ODGERS INC. Statement of Cash Flows For the Year Ended December 31, 2014 Adjustments to reconcile net income to Problem 12-9A Condensed financial data of Odgers Inc. follow. ODGERS INC. Comparative Balance Sheets December 31 Assets 2014 2013Cash $ 155,944 $ 93,412Accounts receivable 169,454 73,340Inventory 217,125 198,501Prepaid expenses 54,812 50,180Long-term investments 266,340 210,370Plant assets 550,050 468,025Accumulated depreciation (96,500 ) (100,360 )Total $1,317,225 $993,468 Liabilities and Stockholders’ EquityAccounts payable $ 196,860 $ 129,889Accrued expenses payable 31,845 40,530Bonds payable 212,300 281,780Common stock 424,600 337,750Retained earnings 451,620 203,519Total $1,317,225 $993,468 ODGERS INC. Income Statement Data For the Year Ended December 31, 2014Sales revenue $749,728Less: Cost of goods sold $261,438 Operating expenses, excluding depreciation 23,951 Depreciation expense 89,745 Income tax expense 52,650 Interest expense 9,129 Loss on disposal of plant assets 14,475 451,388Net income $ 298,340 Additional information: 1.New plant assets costing $193,000 were purchased for cash during the year.2.Old plant assets having an original cost of $110,975 and accumulated depreciation of $93,605 were sold for $2,895 cash.3.Bonds payable matured and were paid off at face value for cash.4.A cash dividend of $50,239 was declared and paid during the year. Prepare a statement of cash flows using the indirect method. (Show amounts that decrease cash flow with either a - sign e.g. -15,000 or in parenthesis e.g. (15,000).) ODGERS INC. Statement of Cash Flows For the Year Ended December 31, 2014 Cash at Beginning of PeriodCash at End of PeriodCash Flows from Financing ActivitiesCash Flows from Investing ActivitiesCash Flows from Operating ActivitiesNet Cash Provided by Financing ActivitiesNet Cash Provided by Investing ActivitiesNet Cash Provided by Operating ActivitiesNet Cash used by Financing ActivitiesNet Cash used by Investing ActivitiesNet Cash used by Operating ActivitiesNet Decrease in CashNet Increase in Cash Increase in Accounts Payable Loss on Disposal of Plant Assets Net Income Decrease in Accounts Receivable Increase in Prepaid Expenses Decrease in Prepaid Expenses Decrease in Accrued Expenses Payable Decrease in Inventory Increase in Inventory Sale of Common Stock Payment of Cash Dividends Increase in Accounts Receivable Redemption of Bonds Purchase of Plant Assets Depreciation Expense Decrease in Accounts Payable Increase in Accrue.

Problem 12-9AODGERS INC.Comparative Balance Sheets December 31.pdf

ajantaopt

Problem 11-2A Fechter Corporation had the following stockholders’ equity accounts on January 1, 2017: Common Stock ($5 par) $536,800, Paid-in Capital in Excess of Par—Common Stock $193,790, and Retained Earnings $100,450. In 2017, the company had the following treasury stock transactions. Mar. 1 Purchased 5,700 shares at $9 per share. June 1 Sold 1,040 shares at $13 per share. Sept. 1 Sold 1,980 shares at $10 per share. Dec. 1 Sold 1,310 shares at $7 per share. Fechter Corporation uses the cost method of accounting for treasury stock. In 2017, the company reported net income of $32,820 ournalize the treasury stock transactions, and prepare the closing entry at December 31, 2017, for net income. (Record journal entries in the order presented in the problem. Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select \"No Entry\" for the account titles and enter 0 for the amounts.) Date Account Titles and Explanation Debit Credit SHOW LIST OF ACCOUNTS Paid-in Capital from Treasury Stock Date Explanation Ref. Debit Credit Balance J10 J10 J10 Treasury Stock Date Explanation Ref. Debit Credit Balance J10 J10 J10 J10 Retained Earnings Date Explanation Ref. Debit Credit Balance Balance ? J10 SHOW LIST OF ACCOUNTS Date Account Titles and Explanation Debit Credit Jan. 1Mar. 1June 1Sept. 1Dec. 1Dec. 31 Jan. 1Mar. 1June 1Sept. 1Dec. 1Dec. 31 Jan. 1Mar. 1June 1Sept. 1Dec. 1Dec. 31 Dec. 1 Jan. 1Mar. 1June 1Sept. 1Dec. 1Dec. 31 SHOW LIST OF ACCOUNTS Solution Journal Entries: Date Account Titles and Explanation Debit Credit Mar. 1 Treasury Stock (5700*$9) $ 51,300.00 Cash $ 51,300.00 (Being shares repurchased ) June. 1 Cash (1040*$13) $ 13,520.00 Paid-in Capital from Treasury Stock = 13520 - 9360 $ 4,160.00 Treasury Stock (1040*$9) $ 9,360.00 (Being treasury shares reissued) Sept. 1 Cash (1980*$10) $ 19,800.00 Paid-in Capital from Treasury Stock = 19800-17820 $ 1,980.00 Treasury Stock (1980*$9) $ 17,820.00 (Being treasury shares reissued) Dec. 1 Cash (1310*$7) $ 9,170.00 Paid-in Capital from Treasury Stock = 11790-9170 $ 2,620.00 Treasury Stock (1310*$9) $ 11,790.00 (Being treasury shares reissued) Dec. 31 Income Summary $ 32,820.00 Retained Earnings $ 32,820.00 (Being bet inc0me closed) Paid-in Capital from Treasury Stock Date Explanation Ref. Debit Credit Balance June. 1 J10 $ 4,160.00 $ 4,160.00 Sept. 1 J10 $ 1,980.00 $ 6,140.00 Dec. 1 J10 $ 2,620.00 $ 3,520.00 Treasury Stock Date Explanation Ref. Debit Credit Balance Mar. 1 J10 $ 51,300.00 $ 51,300.00 June. 1 J10 $ 9,360.00 $ 41,940.00 Sept. 1 J10 $ 17,820.00 $ 24,120.00 Dec. 1 J10 $ 11,790.00 $ 12,330.00 Retained Earnings Date Explanation Ref. Debit Credit Balance Balance $ 100,450.00 $ 100,450.00 Dec. 31 J10 $ 32,820.00 $ 133,270.00 FECHTER CORPORATION Balance Sheet (Partial) For the Year Ended December 31, 2017 Common Stock ($5 par) $ 536,800.00 Paid-in Capital in Excess of Par—Common Stock $ 193,790.00 Retained Earnings $ 133,270.0.

Problem 11-2A Fechter Corporation had the following stockholders’ eq.pdf

ajantaopt

More from ajantaopt (7)

Problem 11 in Chapter 15 examined the TV-viewing habits of adopted .pdf

Problem httpi.imgur.comLFdvjnJ.jpg1SolutionAssumtions of.pdf

Problem 8-9A certain investment requires an initial outlay of $12 .pdf

Problem 6. Bag 1 has 2 red chips and 4 white chips. Bag 2 has 3 red .pdf

Problem 5At a constant interest rate of 15, compounded annually, .pdf

Problem 12-9AODGERS INC.Comparative Balance Sheets December 31.pdf

Problem 11-2A Fechter Corporation had the following stockholders’ eq.pdf

Recently uploaded

This PowerPoint helps students to consider the concept of infinity.

christianmathematics

Micro-Scholarship, What it is, How can it help me.pdf

Poh-Sun Goh

TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...

Nguyen Thanh Tu Collection

UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf

Nirmal Dwivedi

Wizards are very useful for creating a good user experience. In all businesses, interactive sessions are most beneficial. To improve the user experience, wizards in Odoo provide an interactive session. For creating wizards, we can use transient models or abstract models. This gives features of a model class except the data storing. Transient and abstract models have permanent database persistence. For them, database tables are made, and the records in such tables are kept until they are specifically erased.

How to Create and Manage Wizard in Odoo 17

Celine George

Accessible Digital Futures project (20/03/2024)

Jisc

HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx

marlenawright1

FSB Advising Checklist - Orientation 2024

Elizabeth Walsh

Single or Multiple melodic lines structure

dhanjurrannsibayan2

2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx

MaritesTamaniVerdade

Mehran University Newsletter Vol-X, Issue-I, 2024

Mehran University of Engineering & Technology, Jamshoro

Google Gemini An AI Revolution in Education.pptx

Dr. Sarita Anand

The basics of sentences session 3pptx.pptx

heathfieldcps1

Fostering Friendships - Enhancing Social Bonds in the Classroom

Pooky Knightsmith

Sociology 101 Demonstration of Learning Exhibit

jbellavia9

Graduate Outcomes Presentation Slides - English

neillewis46

How to Manage Global Discount in Odoo 17 POS

Celine George

𝐋𝐞𝐬𝐬𝐨𝐧 𝐎𝐮𝐭𝐜𝐨𝐦𝐞𝐬: -Discern accommodations and modifications within inclusive classroom environments, distinguishing between their respective roles and applications. -Through critical analysis of hypothetical scenarios, learners will adeptly select appropriate accommodations and modifications, honing their ability to foster an inclusive learning environment for students with disabilities or unique challenges.

Understanding Accommodations and Modifications

MJDuyan

Python Notes for mca i year students osmania university.docx

Ramakrishna Reddy Bijjam

Wellbeing inclusion and digital dystopias.pptx

Jisc

Recently uploaded (20)

This PowerPoint helps students to consider the concept of infinity.

Micro-Scholarship, What it is, How can it help me.pdf

TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...

UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf

How to Create and Manage Wizard in Odoo 17

Accessible Digital Futures project (20/03/2024)

HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx

FSB Advising Checklist - Orientation 2024

Single or Multiple melodic lines structure

2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx

Mehran University Newsletter Vol-X, Issue-I, 2024

Google Gemini An AI Revolution in Education.pptx

The basics of sentences session 3pptx.pptx

Fostering Friendships - Enhancing Social Bonds in the Classroom

Sociology 101 Demonstration of Learning Exhibit

Graduate Outcomes Presentation Slides - English

How to Manage Global Discount in Odoo 17 POS

Understanding Accommodations and Modifications

Python Notes for mca i year students osmania university.docx

Wellbeing inclusion and digital dystopias.pptx

Problem 3 - A college algebra teacher want to know whether there is .pdf

1. Problem 3 - A college algebra teacher want to know whether there is a negative relationship between number of times a student is absent from class and performance in class. At the end of the semester, he ranks each of his 35 students on two variables, assigning a rank of 1 to the student with the most absences and a rank of 1 to the student with the highest class rank (See accompanying data). Do a one tailed Spearman Rank Correlation test at alpha=0.01 of the null and alternative hypotheses: Ho: Class performance has no rank correlation with number of absences. Ha: Class performance has a negative rank correlation with number of absences. Absences Performance 10.5 25 17.5 11 28 17 24 18 9 33 33.5 35 2 1 19 5 17.5 22 1 34 35 3 7.5 27 25 12 10.5 4 33.5 10 3 26 22 19 27 13 7.5 6 29 29 15.5 28 20 16 4.5 32

2. 12 24 31 2 13 23 32 9 6 30 30 21 21 15 14 7 4.5 31 26 20 15.5 8 23 14 a) Find the value of the test statistic b) Find the critical value (from the appropriate table) c) State the statistical decision d) State the decision in term of the problem Solution (a) The test statistic is -0.311 (b) the critical value is -0.430 (c) Since -0.311 is larger than -0.43, we do not reject Ho. (d) So we can not conclude that Class performance has a negative rank correlation with number of absences.

Problem 3 - A college algebra teacher want to know whether there is .pdf

Recommended

Recommended

More Related Content

More from ajantaopt

More from ajantaopt (7)

Recently uploaded

Recently uploaded (20)

Problem 3 - A college algebra teacher want to know whether there is .pdf