A Thai restaurant wants to know whether more people order pad thai on working days than...

A Thai restaurant wants to know whether more people order pad thai on working days than on non-working days. A sample of 58 working days showed that the average number of orders of pad thai was 350, with an SD of 22. A sample of 62 non-working days showed the average number of orders of pad thai was 355 with an SD of 29. Is the average number of orders of pad thai on the non-working days larger than on the working days? Find the p-value.

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Expert Solution

Z test hypothesis for difference of means.

Note : whenever level of significance not given by default we assume it as 0.05.

orchestra answered 1 year ago

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