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3.) For a two-tailed test with a 0.05 significance level, where is the rejection region when...

3.) For a two-tailed test with a 0.05 significance level, where is the rejection region when n is large, and the population standard deviation is known?

A) Between ±1.960*

B) Between ±1.645

C) Greater than +1.960 and less than −1.960*

D) Greater than +1.645 and less than −1.645

4.) A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0, 7.3, 6.0, 8.8, 6.8, 8.4, and 6.6 pounds. What is the alternate hypothesis?

A) H1: µ = 6.6

B) H1: µ ≠ 6.6

C) H1: µ ≥ 6.6

D) H1: µ > 7.6

Math   Statistics-And-Probability   
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