Q1 Q2 The sales manager of a food company wants to determine if the weekly sales

Question

Q1

Q2

The sales manager of a food company wants to determine if the weekly sales of 16 ounce packages of frozen broccoli has increased since last year. The mean weekly number of sales per store was 2,400 packages last year. The sales manager set the following hypotheses to test Ho u 32400 H1 2400 Available sales data are from 400 stores. Assume that this data set is a random sample. The sample mean is 2,430 and the sample standard deviation is 800. For the significance level of 10%, find the critical value. a. 2451.2 b. 2334.4 c. 2465.6 d. 2348.8 O e. 2430

Explanation / Answer

Q-1

Critical value==2400+1.284*800/SQRT(400)= Option-1

Q-2 From following result option-e is the answer

One-Sample T

Test of = 20 vs < 20

N Mean StDev SE Mean 95% Upper Bound T P
100 19.700 2.000 0.200 20.032 -1.50 0.068

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