{Applicants' Grades Narrative} Construct a 90% confidence interval estimate for the population standard deviation.

Confidence Interval

A range of values used to estimate the true value of a population parameter with a certain level of confidence.

Population Standard Deviation

A measure of the amount of variation or dispersion present in a set of values within an entire population.

Applicants' Grades

The academic scores or marks obtained by individuals applying for admission to educational programs.

Ability to construct and interpret confidence intervals for both population proportion and variance.

Verified Answer

Final Answer :

LCL =

= 8.093 UCL = LCL = = 8.093 UCL = = 18.242

= 18.242

Learning Objectives

Ability to construct and interpret confidence intervals for both population proportion and variance.