Question 188610: I am just really having a problem with this...
A store manager believes that 25% of their customers come in on Monday, 15% on
Tuesday, 15% on Wednesday, 15% on Thursday, and 30% on Friday. Test at the .01
level if the manager is correct if one week the following number of customers
came in to the store.
Monday: 32 Customers
Tuesday: 15 customers
Wednesday: 17 customers
Thursday: 16 customrs
Friday" 40 customers
Find the critical value. Choose between
A. 13.277
B. 9.236
C. 7.779
D. 15.868
Find the test statistic. Choose between
A. 1.36
B. 0.13
C. 1.63
D. –0.13
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! I am just really having a problem with this...
A store manager believes that 25% of their customers come in on Monday, 15% on
Tuesday, 15% on Wednesday, 15% on Thursday, and 30% on Friday. Test at the .01
level if the manager is correct if one week the following number of customers
came in to the store.
Monday: 32 Customers
Tuesday: 15 customers
Wednesday: 17 customers
Thursday: 16 customrs
Friday" 40 customers
------------------------------------
Find the critical value.
Use the Chi-Sq table with df = 4 and right tail = 1%
Ans: A. 13.277
-------------------------
Perform a Chi-Sq calculation:
Observed values are 32/120,15/120,17/120,16/120,40/120
Expected values are the percentages listed.
Ho: All the percentages are correct
Ha: At least one of the percentages is not as expected.
--------------------------------
Find the test statistic.
Ans: B. 0.13
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Cheers,
Stan H.
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