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The weight of a newborns is normally distributed with standard deviaiton is 2.000. A hypothesis regarding...

The weight of a newborns is normally distributed with standard deviaiton is 2.000. A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.0 pounds. A sample of four infants is randomly selected from a normal distribution and their weights at birth are recorded as 7.0, 8.0, 5.0, and 6.0 pounds. What is the decision for a statistical significant change in average weights at birth if the critical values are -2.000 and 2.000?

1) Reject the null hypothesis

2) Fail to reject the null hypothesis

3) Fail to reject the alternative hypothesis

4) Reject the alternative

math   Statistics-And-Probability   
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