I need help with stats/ Please help with TI-84 commands (section 7.2 and 7.3) A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon​ (mpg). You believe the claim is incorrect and find that a random sample of 6 cars has a mean gas mileage of 18 mpg and a standard deviation of 3 mpg. At α=0.10​, test the​ company's claim. Assume the population is normally distributed.   What is the critical value? The critical value is ____________ . (round to 3 decimal places as needed) (1) ____________ Ho.  AT the 10% significance level, there is (2) ____________ evidence to (3) ___________ the car company's claim that the mean gas mileage for the luxury sedan is at least 21 miles per gallon. (1) reject or fail to reject   (2) insufficient or sufficient   (3) support or reject

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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I need help with stats/ Please help with TI-84 commands (section 7.2 and 7.3)

A car company says that the mean gas mileage for its luxury sedan is at least

21

miles per gallon​ (mpg). You believe the claim is incorrect and find that a random sample of

6

cars has a mean gas mileage of

18

mpg and a standard deviation of

3

mpg. At

α=0.10​,

test the​ company's claim. Assume the population is normally distributed.

 

What is the critical value?

The critical value is ____________ . (round to 3 decimal places as needed)

(1) ____________ Ho.  AT the 10% significance level, there is (2) ____________ evidence to (3) ___________ the car company's claim that the mean gas mileage for the luxury sedan is at least 21 miles per gallon.

(1) reject or fail to reject   (2) insufficient or sufficient   (3) support or reject 

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