Question

In: Statistics and Probability

The null and alternate hypotheses are: H0 : μd ≤ 0 H1 : μd > 0...

The null and alternate hypotheses are: H0 : μd ≤ 0 H1 : μd > 0

The following sample information shows the number of defective units produced on the day shift and the afternoon shift for a sample of four days last month.

Day 1 2 3 4

Day shift 12 12 16 19

Afternoon shift 10 10 12 15

At the 0.010 significance level, can we conclude there are more defects produced on the day shift? Hint: For the calculations, assume the day shift as the first sample.

a. State the decision rule. (Round your answer to 2 decimal places.)

b. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

c. What is the p-value?

d. What is your decision regarding H0?

Solutions

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