Answered step by step
Verified Expert Solution
Question
1 Approved Answer
The waiting times (in minutes) of a random sample of 22 people at a bank have a sample standard deviation of 3.6 minutes. Construct a
The waiting times (in minutes) of a random sample of
22
people at a bank have a sample standard deviation of
3.6
minutes. Construct a confidence interval for the population variance.
sigma squared exponent 2.
and the population standard deviation
sigma .
Use a
90 % level of confidence. Assume the sample is from a normally distributed population.
Question content area bottom
Part 1
What is the confidence interval for the population variance?
sigma squared exponent 2? (_____, _______)
(enter your response here)
(Round to one decimal place as needed.)
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started