A pediatrician obtains the heights of her 200 three-year-old female patients. The heights are norally distributed with a ean of 37.8 and a standard deviation of 3.14. What percent of the three-year-old females have a height lless than 34 inches?

A particular fruit's weights are normally distributed, with a mean of 380 grams and a standard deviation of 12 grams.The heaviest 9% of fruits weigh more than how many grams?Give your answer to the nearest gram.

A particular fruit's weights are normally distributed, with a mean of 519 grams and a standard deviation of 10 grams.The heaviest 13% of fruits weigh more than how many grams?Give your answer to the nearest gram.

Suppose that the heights of 4-year old boys are normally distributed with a mean of 103cm and a standard deviation of 4.05. What height represents the 95th percentile?

A particular fruit's weights are normally distributed, with a mean of 527 grams and a standard deviation of 17 grams. The heaviest 9% of fruits weigh more than how many grams? Give your answer to the nearest gram.

Dr. Shoals predicts that people who walk a mile in moderately high heels and very high heels will differ in their levels of reported back pain. 27 participants walk in 4-inch heels and then 2.5-inch heels. He calculates the standard deviation of the difference scores and finds sD = 3.37. What is the standard error of the difference for difference scores?

A particular fruit's weights are normally distributed, with a mean of 382 grams and a standard deviation of 15 grams.The heaviest 14% of fruits weigh more than how many grams?Give your answer to the nearest gram.

A particular fruit's weights are normally distributed, with a mean of 786 grams and a standard deviation of 17 grams. The heaviest 18% of fruits weigh more than how many grams? Give your answer to the nearest gram.

According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the standard deviation is 3 inches.  If Zsike is 67 inches tall, what is her z-score?

A particular fruit's weights are normally distributed, with a mean of 228 grams and a standard deviation of 20 grams. The heaviest 4% of fruits weigh more than how many grams? Give your answer to the nearest gram.