# At a recent meeting the manager of a national call center f.pdf

22 Mar 2023
1 sur 1

### At a recent meeting the manager of a national call center f.pdf

• 1. At a recent meeting, the manager of a national call center for a major Internet bank made the statement that the average past-due amount for customers who have been called previously about their bills is now no larger than \$32.00. Other bank managers at the meeting suggested that this statement may be in error and that it might be worthwhile to conduct a test to see if there is statistical support for the call center manager's statement. The accompanying table contains data for a random sample of 67 customers from the call center population. Assuming that the population standard deviation for past due amounts is known to be \$62.00, what should be concluded based on the sample data? Test using =0.05. Click the icon to view the data table. State the appropriate null and alternative hypotheses. Choose the correct answer below. A. H0:= 32.00 B. H0:=32.00 C. H0:32.00 HA:=32.00 HA:=32.00 HA:<32.00 D. H0:32.00 E. H0:>32.00 F. H 0:<32.00 HA:>32.00 HA:32.00 HA:32.00begin{tabular}{cc} 82.25 & 0.00 -128.69 & 52.26 76.92 & 58.23 99.03 & 135.34 37.68 & 40.85 40.69 & 107.74 -92.91 & 99.06 94.62 & 183.88 120.98 & 72.11 0.00 & 0.00 0.00 & 150.66 101.05 & 168.94 152.09 & 4.65 54.82 & 66.45 0.00 & 54.13 47.08 & 59.59 77.95 & 315.62 142.01 & 143.33 51.46 & 0.00 216.48 & 0.00 26.22 & 0.00 181.18 & 58.67 1.13 & 68.75 -18.07 & -130.33 2.14 & 75.66 0.00 & 98.93 115.75 & 38.18 0.00 & 40.53 82.35 & -93.53 58.89 & 95.05 58.07 & 122.72 27.09 & 0.00 31.87 & 0.00 -60.73 & hline end{tabular}