A bank with branches located in a commercial district of a city and in a residential area has the business objective of developing an improved process for serving customers during the noon-to-1 PM. lunch period. Management decides to first study the waiting time in the current process. The waiting time is defined as the number of minutes that elapses when the customer enters the line until he or she reaches the teller window. Data are collected from a random sample of 15 customers at each branch. Complete parts (a) through (d) below m Click the icon to view the bank branch data H P2 OC. Hgi 22 D. H "2 Find the test statistic. STAT"-4.09 (Round to two decimal places as needed.) ) Find the critical value(s). <-2.05, 2.05 (Use a comma to separate answers as needed. Round to two decimal places as needed) Choose the correct conclusion below Waiting time data A. Reject Ho. There is insufficient evidence that the mean waiting time between the two branches differ. Commercial Residential 9.58 5.81 8.01 5.64 8.57 3.84 825 3 8. Do not reject Ho. There is sufficient evidence that the mean waiting time between the two branches differ. 421 5.56 3.04 5.31 4.56 2.67 OC. Reject Ho. There is sufficient evidence that the mean walting time between the two branches differ. OD. Do not reject Ha. There is insufficient evidence that the mean waiting time between the two branches differ. b. Determine the p-value in (a) and interpret its meaning 3.47 3.02 4.68 6.08 0.26 5.07 8.53 10.43 6.83 5.68 p-value O (Round to three decimal places as needed.) Interpret the p-value. Choose the correct answer below 6.35 6.48 3.58 4.13 6.01 9.82 5.38 A. Ris the probability of obtaining a sample that yields a t-test statistic farther away from 0 in either direction than the computed test statistic if there is no difference in the mean waiting time between commercial and residential banks. OB. Ris the probability of obtaining a sample that yields a t-test statistic farther away from 0 in the negative direction than the computed test statistic if there is no difference in the mean waiting time between commercial and residential banks oC. Ris the probablity the two banks have diferent population mean waiting times. OD. It is the probability of obtaining a sample that yields a t-test statistic farther away from 0 in the positive direction than the computed test statistic if there is no difference in the mean waiting time between commercial and residential banks.
A bank with branches located in a commercial district of a city and in a residential area has the business objective of developing an improved process for serving customers during the noon-to-1 PM. lunch period. Management decides to first study the waiting time in the current process. The waiting time is defined as the number of minutes that elapses when the customer enters the line until he or she reaches the teller window. Data are collected from a random sample of 15 customers at each branch. Complete parts (a) through (d) below m Click the icon to view the bank branch data H P2 OC. Hgi 22 D. H "2 Find the test statistic. STAT"-4.09 (Round to two decimal places as needed.) ) Find the critical value(s). <-2.05, 2.05 (Use a comma to separate answers as needed. Round to two decimal places as needed) Choose the correct conclusion below Waiting time data A. Reject Ho. There is insufficient evidence that the mean waiting time between the two branches differ. Commercial Residential 9.58 5.81 8.01 5.64 8.57 3.84 825 3 8. Do not reject Ho. There is sufficient evidence that the mean waiting time between the two branches differ. 421 5.56 3.04 5.31 4.56 2.67 OC. Reject Ho. There is sufficient evidence that the mean walting time between the two branches differ. OD. Do not reject Ha. There is insufficient evidence that the mean waiting time between the two branches differ. b. Determine the p-value in (a) and interpret its meaning 3.47 3.02 4.68 6.08 0.26 5.07 8.53 10.43 6.83 5.68 p-value O (Round to three decimal places as needed.) Interpret the p-value. Choose the correct answer below 6.35 6.48 3.58 4.13 6.01 9.82 5.38 A. Ris the probability of obtaining a sample that yields a t-test statistic farther away from 0 in either direction than the computed test statistic if there is no difference in the mean waiting time between commercial and residential banks. OB. Ris the probability of obtaining a sample that yields a t-test statistic farther away from 0 in the negative direction than the computed test statistic if there is no difference in the mean waiting time between commercial and residential banks oC. Ris the probablity the two banks have diferent population mean waiting times. OD. It is the probability of obtaining a sample that yields a t-test statistic farther away from 0 in the positive direction than the computed test statistic if there is no difference in the mean waiting time between commercial and residential banks.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 25PPS
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