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The distribution of weights for newborn babies is approximately normally distributed with a mean of 7.3 pounds and a standard deviation of 0.8 pounds.
1. What percent of newborn babies weigh more than 8.1 pounds? Incorrect%
2. The middle 95% of newborn babies weigh between _____ and _____ pounds.
3. What percent of newborn babies weigh less than 5.7 pounds? %
4. Approximately 50% of newborn babies weigh more than pounds.
5. What percent of newborn babies weigh between 6.5 and 9.7 pounds
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The null hypothesis is Ho: p1=p2 and alternative is Ha: p1 not = to p2 and level of significance is alpha =0.05 My question is if i am using a two tailed z test for this then why am I using the two tailed z hypothesis test?
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