The Mean Weight of Newborn Infants at a Community Hospital $\alpha$

question 129

Multiple Choice

The mean weight of newborn infants at a community hospital 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.If $\alpha$ = 0.05,what is the critical t value?

• A)-2.365
• B)\(\pm\)1.96
• C)\(\pm\)2.365
• D)\(\pm\)2.447
• E)-2.447

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