Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Chapter Test Confidence intervals 6. The gas mileages (in miles per gallon) of 27 randomly selected sports cars are listed in the accompanying table. Assume

image text in transcribed
Chapter Test Confidence intervals 6. The gas mileages (in miles per gallon) of 27 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why, Interpret Click the icon to view the sports car gas mileages. Let a be the population standard deviation and let n be the sample size. Which distribution should be uted to construct the confidence interval? the results. (1) be used to construct the confidence interval, since (2) Identify the confidence interval. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA (Round to one decimal place as needed.) O B. Neither the standard normal distribution nor the t-distribution can be used to construct the interval. Interpret the results. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA 1% of all random samples of 27 sports cars from the population of all sports cars will have a mean gas (Type an integer or a decimal. Do not round.) % confidence, It can be said that the mean gas mileage of all sports cars (in miles per gallon) in (Type an integer or a decimal. Do not round.) OC. It can be said that % of all sports cars have a gas mileage (in miles per gallon) that is between the in (Type an integer or a decimal. Do not round) ]% confidence, it can be said that most sports cars in the population have gas milongos (in miles (Type an integer or a decimal, not round.) OE. Neither the standard normal distribution nor the t-distribution can be used to construct the interval OB. With OD. With

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Loss Control Auditing A Guide For Conducting Fire Safety And Security Audits

Authors: E. Scott Dunlap

1st Edition

1439828865, 978-1439828861

More Books

Students also viewed these Accounting questions