Based on their records, a hospital claims that they proportion p, of full-term babies born in the community that weight more than 7 pounds is 35%. A pediatrician who works with several hospitals in the community would like do verify the hospitals claim. I'm a random sample is 245 babies born in the community, 106 weighed over 7 pounds. Is there enough evidence

The standard IQ test has a mean of 99, and a standard deviation of 16. We want to be 90% certain that we are within 5 IQ points of the true  mean. Determine the required sample size.

You collect information on a random sample of women and obtain estimates on vitamin D exposure. However, the results that you find are different than those conducted at another study site. Should you be concerned? Explain your answer using the concept of sampling variability

A survey found that​ women's heights are normally distributed with mean 63.6in and standard deviation 2.2 in. A branch of the military requires​ women's heights to be between 58 in and 80 in.   a. Find the percentage of women meeting the height requirement. Are many women being denied the opportunity to join this branch of the military because they are too short or too​ tall? b. If this branch of the military changes the height requirements so that all women are eligible except the shortest​ 1% and the tallest​ 2%, what are the new height​ requirements?     a. The percentage of women who meet the height requirement is nothing​%. ​(Round to two decimal places as​ needed.)