rewriting work......... 700 words..........

paymenttimecase.xlsx

The Payment Time Case

PayTime	Confidence Interval Estimate for the Mean FORMULA CI=X ± Z×α/√N		Confidence Interval Estimate for the Mean FORMULA CI=X ± Z×α/√N
22		95%		99%
19	Data		Data
16	Population Standard Deviation	4.20	Population Standard Deviation	4.2
18	Sample Mean	18.1077	Sample Mean	18.1077
13	Sample Size	65	Sample Size	65
16	Confidence Level	95%	Confidence Level	99%
29
17	Intermediate Calculations		Intermediate Calculations
15	Standard Error of the Mean	0.5209	Standard Error of the Mean	0.5209
23	Z Value	1.9600	Z Value	2.5760
18	Interval Half Width	1.0210	Interval Half Width	1.3419
21	Sample Size	65	Sample Size	65
16	Confidence Level	95%	Confidence Level	99%
10
16	Confidence Interval		Confidence Interval
22	Interval Lower Limit	17.0867	Interval Lower Limit	16.7658
17	Interval Upper Limit	19.1287	Interval Upper Limit	19.4496
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15
21
20
16
15
19
18
15
22
16
24
20
17
14
14
19
15
27
12
17
25
13
17
16
13
18
19
18
14
17
17
12
23
24
18
16
16
20
15
24
17
21
15
14
19
26
21