Question

# Using the first 10 observations, I need to

a) Obtain a 95% confidence interval for the mean muscle mass of women aged 60. Interpret your confidence interval.

b) Obtain a 95% prediction interval for the muscle mass of a woman whose age is 60. Is the prediction interval relatively precise?

c) Determine the boundary values of the 95% confidence band for the regression line when Xh=60. Is your confidence band wider at this point than the confidence interval in part 1? Should it be?

Firstly, I am not even really sure what the difference is between all 3 of these questions. What is the difference between a confidence interval and a prediction interval? And aren't 2 and 3 the same question? I am confused, can someone show me how to solve these and explain the differences please. it would be greatly appreciated.

Image transcriptions

Employee-facing registry content X https://moodle.concordia.ca/moc X Course Hero X + X -) C moodle.concordia.ca/moodle/pluginfile.php/3768555/mod_resource/content/1/CH01PR27.txt S . . . Apps e M f S N in 30 m 106 43 106 41 97 47 113 46 96 45 119 41 92 47 112 41 92 48 102 48 107 42 107 47 102 43 O Type here to search 9 N 8 ~ 4 6 8 0 6 ) ENG 9:50 PM 2019-09-30

Employee-facing registry content X https://moodle.concordia.ca/moc X Course Hero X + X -) C...

318,921 students got unstuck by Course
Hero in the last week

Our Expert Tutors provide step by step solutions to help you excel in your courses