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# a restaurant serves noon-to-1 p. lunch period. The waiting time needs to be shortened. A random sample of 15 customers is selected.

a restaurant serves noon-to-1 p.m. lunch period. The waiting time needs to be shortened. A random sample of 15 customers is selected. another restaurant located in residential area, is also concerned with the noon-to-1 p.m. lunch period.

Theses are the waiting time results in minutes...

Commercial

4.21 5.55 3.02 5.13 4.77 2.34 3.54 3.20 4.50 6.10 0.38 5.12 6.46 6.19 3.79 = 64.3 = 313.19

Residential

9.66 5.9 8.02 5.79 8.73 3.82 8.01 8.35 10.49 6.68 5.64 4.08 6.17 9.91 5.47 = 106.72 = 819.97

the population variances from both residential and commercial are equal, is there evidence of a difference in the mean waiting time between the two branches? alpha = 0.05.

Decision Rule:

Conclusions:

find p value

P value = 0.0003044 Decision rule Reject the null if, P value ﻿ ≤ α... View the full answer

Decision Rule: We will reject the null hypothesis, if t(calculated) is less than -2.048... View the full answer

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