Question 1057939
Below is my random sample data set. It is for 30 customers. 
CUSTOMER	AMOUNT SPENT
13	$15.91
42	$32.61
24	$15.61
40	$20.00
25	$23.25
9	$41.28
16	$75.81
32	$32.45
31	$10.25
47	$18.91
22	$45.00
38	$36.45
10	$26.54
19	$24.50
21	$26.58
28	$19.51
2	$35.06
30	$25.41
4	$22.60
27	$21.45
41	$21.25
12	$25.45
49	$65.54
36	$45.51
7	$19.45
33	$47.25
37	$12.25
20	$35.10
5	$27.00
8	$32.45 

I believe the Null Hypothesis is: 
Ho: μ = $30.59
Ha: u # $30.59 
Sample Mean is the mean of your sample :: 29.35
Find the standard deviation of your sample.
Find the z-value (or t-value if your class uses t-tests); this is
the test statistic.
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Assume this is a 95% test.
Find the p-value
If 2*(p-value) < 5%  reject Ho.
Cheers,
Stan H.
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