## Answers

The statistical software output for this problem is:

From above output:

Z = -0.3354, P = 0.3686

**Option A** is correct.

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: Difference between two means H:A-= 0 HAH-H20 Hypothesis test results: Difference 11 12 Sample mean Std.

.
Err. Z-stat P-value 39 37 -0.6 1.7887401 -0.33543163 0.3686

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