Solution-Estimate the population average difference

Estimate the population average difference

Reference no: EM13247626

Question

A study is conducted to estimate the average difference in bus use in a large city between the morning and afternoon rush hours. The transit authority's researcher randomly selects nine buses because of the variety of routes they represent. On a given day, the number of passengers on each bus is counted at 7.45 am and at 4.45 pm, with the following results:

Bus	Morning	Afternoon
1	43	41
2	51	49
3	37	44
4	24	32
5	47	46
6	44	42
7	50	47
8	55	51
9	46	49


Sample size	9
Confidence interval	90%

a) Use the data to compute a 90% confidence interval to estimate the population average difference. Assume that the number of passengers is normally distributed.

Reference no: EM13247626

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Estimate the population average difference

Reference no: EM13247626

Reference no: EM13247626

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