i need help

For the following mixture of normal problems, decidewhat type of question: score, percentage, probability for an x, or probability for a mean.

a.School-age children should drink approximately 40.5 oz of water per day according to a recent report.Suppose the amounts of water that school-age children actually consume in a day are approximately normally distributed with a mean of 32.0 oz and a standard deviation of 7.1 oz.What is the probability that a randomly selected school-age child will drink less than the suggested amount of water in a day? Type of question:___________________

b.A book publisher claims that its mean book length is 250 pages with a standard deviation of 70 pages.As a reviewer, you get paid per book, and not per page, to read over a manuscript.What is the probability that for a sample of 45 randomlyselected books, the mean length of a book is less than230 pages?Type of question:__________________

For the following mixture of normal problems, decidewhat type of question: score, percentage, probability for an x, or probability for a mean.

a.School-age children should drink approximately 40.5 oz of water per day according to a recent report.Suppose the amounts of water that school-age children actually consume in a day are approximately normally distributed with a mean of 32.0 oz and a standard deviation of 7.1 oz.What is the probability that a randomly selected school-age child will drink less than the suggested amount of water in a day? Type of question:

b.A book publisher claims that its mean book length is 250 pages with a standard deviation of 70 pages.As a reviewer, you get paid per book, and not per page, to read over a manuscript.What is the probability that for a sample of 45 randomlyselected books, the mean length of a book is less than230 pages?Type of question:

c.In one region of the Caribbean Sea, daily water temperatures are normally distributed with a mean of 77.9^o Fanda standard deviation of 2.4^o F.What is the third quartile forwater temperatures in this region?Type of question:________________

d.The weights of Jersey cows offered at auction in one region are normally distributed with a mean of 825 pounds and a standard deviation of 74.8 pounds.One rancher endeavors to only bid on cows that are in the top 5% of weight.What is the lowest weight cow that the rancher should bid on?

Type of question:____________________