Mathematics, 18.04.2020 03:25 coco9972
A market research analyst believes that the average weekly household expenditure on groceries in Pearland is $125. Assume that the weekly household expenditures are normally distributed. In setting up the hypotheses to test the analyst’s belief, she obtained a test statistic value of z = 1.45 Calculate the p-value based on normal distribution.
A. 0.4265 B. 0.1470 C. 0.0287 D. 0.0735 E. 0.0574
Based on the results of the hypothesis test at the 10% level of significance, which of the following is a correct conclusion?
A. There is sufficient evidence to conclude that the average weekly household expenditure on groceries in Pearland is $125.
B. There is not sufficient evidence to conclude that the average weekly household expenditure on groceries in Pearland is significantly different from $125.
C. There is sufficient evidence to conclude that the average weekly household expenditure on groceries in Pearland is significantly different from $125.
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A market research analyst believes that the average weekly household expenditure on groceries in Pea...
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