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Standard Normal Distribution 04 Step 1: Select one-tailed or two-tailed. O One-tailed 0.3- O Two-tailed Step 2: Enter the critical value(s). (Round to 3 decimal places.) 02- 0.1 Step 3: Enter the test statistic. (Round to 3 decimal places.) (c) Based on your answer to part (b), choose what can be concluded, at the 0.10 level of significance, about the claim made by the company. O Since the value of the test statistic lies in the rejection region, the null hypothesis is rejected. So, there is enough

Standard Normal Distribution 04 Step 1: Select one-tailed or two-tailed. O One-tailed 0.3- O Two-tailed Step 2: Enter the critical value(s). (Round to 3 decimal places.) 02- 0.1 Step 3: Enter the test statistic. (Round to 3 decimal places.) (c) Based on your answer to part (b), choose what can be concluded, at the 0.10 level of significance, about the claim made by the company. O Since the value of the test statistic lies in the rejection region, the null hypothesis is rejected. So, there is enough

MATLAB: An Introduction with Applications
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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Standard Normal Distribution 04 Step 1: Select one-tailed or two-tailed. O One-tailed 03- O Two-tailed Step 2: Enter the critical value(s). (Round to 3 decimal places.) 0.2+ 0.1+ Step 3: Enter the test statistic. (Round to 3 decimal places.) -3 -2 -1 3. (c) Based on your answer to part (b), choose what can be concluded, at the 0.10 level of significance, about the claim made by the company. Since the value of the test statistic lies in the rejection region, the null hypothesis is rejected. So, there is enough 十
Transcribed Image Text:Standard Normal Distribution 04 Step 1: Select one-tailed or two-tailed. O One-tailed 03- O Two-tailed Step 2: Enter the critical value(s). (Round to 3 decimal places.) 0.2+ 0.1+ Step 3: Enter the test statistic. (Round to 3 decimal places.) -3 -2 -1 3. (c) Based on your answer to part (b), choose what can be concluded, at the 0.10 level of significance, about the claim made by the company. Since the value of the test statistic lies in the rejection region, the null hypothesis is rejected. So, there is enough 十
A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, u, of 20 years. To test the company's claim, a competitor has selected 39 of these batteries at random. The mean lifetime of the sample is 20.9 years. Suppose the population standard deviation of these lifetimes is known to be 5.1 years. Is there enough evidence to reject the claim that the mean lifetime of the newest model is 20 years? Perform a hypothesis test, using the 0.10 level of significance. (a) State the null hypothesis H, and the alternative hypothesis H. Họ: O<O OSO H: O=D ও ? (b) Perform a hypothesis test. The test statistic has a normal distribution (so the test is a "Z-test"). Here is some other information to help you with your test. Z005 is the value that cuts off an area of 0.05 in the right tail. Z0.05 • The test statistic has a normal distribution and the value is given by z = %3D
Transcribed Image Text:A company that manufactures batteries used in electric cars is reporting that their newest model of battery has a mean lifetime, u, of 20 years. To test the company's claim, a competitor has selected 39 of these batteries at random. The mean lifetime of the sample is 20.9 years. Suppose the population standard deviation of these lifetimes is known to be 5.1 years. Is there enough evidence to reject the claim that the mean lifetime of the newest model is 20 years? Perform a hypothesis test, using the 0.10 level of significance. (a) State the null hypothesis H, and the alternative hypothesis H. Họ: O<O OSO H: O=D ও ? (b) Perform a hypothesis test. The test statistic has a normal distribution (so the test is a "Z-test"). Here is some other information to help you with your test. Z005 is the value that cuts off an area of 0.05 in the right tail. Z0.05 • The test statistic has a normal distribution and the value is given by z = %3D
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