Using this information, what was the residual standard deviation (Se) found in your analysis?

A nutritionist wrote the following summary statement for a research study: Students who major in health sciences report eating M = 4, SD = 1.5 pieces of fruit a day. (T/F) The graph of the data below accurately depicts the relationship between mean and standard deviation in a distribution for this summary statement. True False 2.5 SD = 1.5 M = 4 5.5

The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30. Find the score that is 2 1/2 standard deviations above the mean.

The scores on a psychology test were normally distributed with a mean of 65 and a standard deviation of 4. Use the Empirical Rule to find the percentage of scores above 69.

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?

Suppose the mean length of songs played on a radio station is 190 seconds with a standard deviation of 27 seconds. Calculate the z-score of a song that lasts 235 seconds. (Round your answer to two decimal places.)

How does the slightly different perspective make the standard deviation even more accessible?

On a recent quiz, the class mean was 75 with a standard deviation of 4. Calculate the z-score (to 4 decimal places) for a person who received score of 86.6.

b) The standard deviation of the residuals is s=5.9. Interpret the value in context.

On a standardized exam, the scores are normally distributed with a mean of 350 and a standard deviation of 20. Find the z-score of a person who scored 400 on the exam.