please underline the answers A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, H, of 22 years. To test thecompany's claim, a competitor has selected 49 of these batteries at random. The mean lifetime of the sample is 22.6 years. Suppose the population standarddeviation of these lifetimes is known to be 3.3 years.Is there enough evidence to reject the claim that the mean lifetime of the newest model is 22 years? Perform a hypothesis test, using the 0.05 level ofsignificance.(a) State the null hypothesis H and the alternative hypothesis H,.Ho: 0O Question 8 of 15 (1 point) Question Attempt: 1 of Unlimited• The p-value is two times the area under the curve to the right of the value of the test statistic,Normal Distribution04Step 1: Select one-tailed or two-tailed.O One-tailedO Two-tailed0.3Step 2: Enter the test statistic.(Round to 3 decimal places.)0.2Step 3: Shade the area represented bythe p-value.0.1Step 4: Enter the p-value.(Round to 3 decimal places.)(c) Based on your answer to part (b), choose what can be concluded, at the 0.05 level of significance, about the claim made by the company.Save For LaterSubmit AssiCheck|PrivacyO 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use

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A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, H, of 22 years. To test the company's claim, a competitor has selected 49 of these batteries at random. The mean lifetime of the sample is 22.6 years. Suppose the population standard deviation of these lifetimes is known to be 3.3 years. Is there enough evidence to reject the claim that the mean lifetime of the newest model is 22 years? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis H and the alternative hypothesis H,: Ho: 0 H: 0 O

A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, H, of 22 years. To test the company's claim, a competitor has selected 49 of these batteries at random. The mean lifetime of the sample is 22.6 years. Suppose the population standard deviation of these lifetimes is known to be 3.3 years. Is there enough evidence to reject the claim that the mean lifetime of the newest model is 22 years? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis H and the alternative hypothesis H,: Ho: 0 H: 0 O

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

please underline the answers

A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, H, of 22 years. To test the
company's claim, a competitor has selected 49 of these batteries at random. The mean lifetime of the sample is 22.6 years. Suppose the population standard
deviation of these lifetimes is known to be 3.3 years.
Is there enough evidence to reject the claim that the mean lifetime of the newest model is 22 years? Perform a hypothesis test, using the 0.05 level of
significance.
(a) State the null hypothesis H and the alternative hypothesis H,.
Ho: 0
O<O
OSO
D=0
(b) Perform a Z-test and find the p-value.
Here is some information to help you with your Z-test.
x-H
• The value of the test statistic is given by
• The p-value is two times the area under the curve to the right of the value of the test statistic.
Normal Distribution
Save For Later
Submit Assignme
Check
2021 McGraw-Hill Education All Rights Reserved. Terms of UseI Privacy I Accessib

Question 8 of 15 (1 point) Question Attempt: 1 of Unlimited
• The p-value is two times the area under the curve to the right of the value of the test statistic,
Normal Distribution
04
Step 1: Select one-tailed or two-tailed.
O One-tailed
O Two-tailed
0.3
Step 2: Enter the test statistic.
(Round to 3 decimal places.)
0.2
Step 3: Shade the area represented by
the p-value.
0.1
Step 4: Enter the p-value.
(Round to 3 decimal places.)
(c) Based on your answer to part (b), choose what can be concluded, at the 0.05 level of significance, about the claim made by the company.
Save For Later
Submit Assi
Check
|Privacy
O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use

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