1 answer

A researcher wanted to know if high school juniors worked more hours per week than high...

Question:

A researcher wanted to know if high school juniors worked more hours per week than high school seniors. His findings are in t
A researcher wanted to know if high school juniors worked more hours per week than high school seniors. His findings are in the table below. Test the hypothesis at -0.05. 8.4 Senior Junior Mean 18.5 19.1 Population Standard 7.1 Deviation Sample size 39 37 Which of the following are the correct test statistic and p-value? Z= 0.3354, P = 0.3686 OZ 0.3354, P 0.3691 0.3686 OT 0.3354, P 0.3354, P ОТ 0.3601

Answers

The statistical software output for this problem is:

Two sample Z summary bypothesis test: H: Mean of population 1 (Std. dev = 7.1) H: Mean of population 2 (Std dev. = 8.4) H-2:

From above output:

Z = -0.3354, P = 0.3686

Option A is correct.

.

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