Click the icon to view the bank branch data. a. Assuming that the population variances from both banks are equal, is there evidence of a difference in the mean waiting time between the two branches? (Use a = 0.1.) Let u, be the mean waiting time of the commercial district branch and uz be the mean waiting time of the residential area branch. Determine the hypotheses. Choose the correct answer below. OB. Ho: H "2 O A. Ho: H *H2 H,: "2 OC. Ho: H 242 OD. Hai H SH2 H,: H2 Find the test statistic. STAT "O (Round to two decimal places as needed.) Find the critical value(s). (Use a comma to separate answers as needed. Round to two decimal places as needed.) Choose the correct conclusion below. O A. Do not reject H,. There is sufficient evidence that the mean waiting time between the two branches differ. B. Reject Ho. There is sufficient evidence that the mean walting time between the two branches differ. c. Do not reject Ho. There is insufficient evidence that the mean waiting time betwoen the two branches differ. D. Reject Ho. 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. p-value =O (Round to three decimal places as needed.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 P.M. 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 from 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.
Click the icon to view the bank branch data.
.....
a. Assuming that the population variances from both banks are equal, is there evidence of a difference in the mean waiting time between the two branches? (Use a = 0.1.)
Let
be the mean waiting time of the commercial district branch and u,
be the mean waiting time of the residential area branch. Determine the hypotheses. Choose the correct answer below.
Waiting time data
A. Ho: H1 # H2
H1: H1 =H2
B. Ho: H1 = H2
Residential
9.53
5.93
8.15
Commercial
c. Ho: H12 H2
H1: H1 <H2
D. Ho: H1 SH2
4.12
H4: H1> H2
5.47
3.15
5.43
5.54
Find the test statistic.
4.86
8.81
tSTAT =
(Round to two decimal places as needed.)
2.27
3.77
%3D
3.65
8.19
3.49
8.58
10.48
Find the critical value(s).
4.25
6.07
6.87
0.21
5.37
5.16
4.03
(Use a comma to separate answers as needed. Round to two decimal places as needed.)
6.54
6.46
Choose the correct conclusion below.
6.02
9.78
3.73
5.43
A. Do not reject Ho. There is sufficient evidence that the mean waiting time between the two branches differ.
B. Reject Ho: There is sufficient evidence that the mean waiting time between the two branches differ.
C. Do not reject Ho. There is insufficient evidence that the mean waiting time between the two branches differ.
Print
Done
D. Reject Ho. 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.
p-value =
(Round to three decimal places as needed.)
Transcribed Image Text: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 P.M. 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 from 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. Click the icon to view the bank branch data. ..... a. Assuming that the population variances from both banks are equal, is there evidence of a difference in the mean waiting time between the two branches? (Use a = 0.1.) Let be the mean waiting time of the commercial district branch and u, be the mean waiting time of the residential area branch. Determine the hypotheses. Choose the correct answer below. Waiting time data A. Ho: H1 # H2 H1: H1 =H2 B. Ho: H1 = H2 Residential 9.53 5.93 8.15 Commercial c. Ho: H12 H2 H1: H1 <H2 D. Ho: H1 SH2 4.12 H4: H1> H2 5.47 3.15 5.43 5.54 Find the test statistic. 4.86 8.81 tSTAT = (Round to two decimal places as needed.) 2.27 3.77 %3D 3.65 8.19 3.49 8.58 10.48 Find the critical value(s). 4.25 6.07 6.87 0.21 5.37 5.16 4.03 (Use a comma to separate answers as needed. Round to two decimal places as needed.) 6.54 6.46 Choose the correct conclusion below. 6.02 9.78 3.73 5.43 A. Do not reject Ho. There is sufficient evidence that the mean waiting time between the two branches differ. B. Reject Ho: There is sufficient evidence that the mean waiting time between the two branches differ. C. Do not reject Ho. There is insufficient evidence that the mean waiting time between the two branches differ. Print Done D. Reject Ho. 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. p-value = (Round to three decimal places as needed.)
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