At test for a mean uses a sample of 20 observations. Find the t test statistic value that has a P-value of 0.01 when the alternative hypothesis is Ha: µ< 0. Round your answer to two decimal places.A. - 2.20В. - 2.54C.- 2.86D. 2.54О Е. 2.20

Hypothesis testing is conducted for the parameters of the population, like population mean,…

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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 Help Y 12.2.79 The number of successes and the sample size for a simple random sample from a population are given below. x = 8, n = 40, Ho:p=0.4, H2: p< 0.4, a = 0.01 a. Determine the sample proportion. b. Decide whether using the one-proportion z-test is appropriate. c. If appropriate, use the one-proportion z-test to perform the specified hypothesis test. Click here to view a table of areas under the standard normal curve for negative values of z. Click here to view a table of areas under the standard normal curve for positive values of z. c. Determine the test statistic, if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. z= - 2.58 (Round to two decimal places as needed.) B. The one-proportion z-test is not appropriate. Identify the critical value(s), if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. A. ±Za/2 (Round to two decimal places as…
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4. Given are x = 35, µ = 38, s = 10, n = 20, Determine the statistical test to be used. ール Test Statistic: Z =" Test Statistic: t = A. В. 5. Given are x = 90, µ = 88, o = 6, n = 100. Find the value of z. A. 3.33 B. - 3. 33
Please provide a clear and complete solution. Answer fast for I have 30 minutes left. Thank you very much.
An independent measures study with n = 6 in each sample produces a sample mean difference of 8 points and Sm1-m2= 2. What is the value for the T statistic? A. 1 B. 2 C. 4 D. 4/-8
Use technology and a t-test to test the claim about the population mean at the given level of significance a using the given sample statistics. Assume the population is normally distributed Claim: u > 78; a = 0.01 Sample statistics: × = 79.3, s = 3.6, n = 28 What are the null and alternative hypotheses? Choose the correct answer below. O A. Ho: M = 78 H: 4*78 О c. Ha: u₴78 Hai n< 78 OB. H: 4478 H: M=78 O D. H: 4 s78 H: 4>78 What is the value of the standardized test statistic? The standardized test statistic is__ . (Round to two decimal places as needed.) What is the P-value of the test statistic? P-value=__(Round to three decimal places as needed.) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.
Test the claim below about the mean of the differences for a population of paired data at the level of significance a. Assume the samples are random and dependent, and the populations are normally distributed. Claim: H, 20; a = 0.05. Sample statistics: d = -2.2, s, = 1.5, n=14 Identify the null hypothesis by writing its complement. O A. Ho: Ha #0 Ha: H = 0 O B. Ho: Hg s0 Hgi Hg>0 O D. Ho: Ha 0 E. Ho: Ha 20 H: H <0 The test statistic is t= -5.49. (Round to two decimal places as needed.) The critical value(s) is(are) t, = - 1.77 (Round to two decimal places as needed. Use a comma to separate answers as needed.) V the rejection region, V the null hypothesis. There V statistically significant evidence to reject the claim. Since the test statistic is
If I'm doing hypothesis testing on the amount (percentage) of americans who have a college degree, would I use p (the population proportion) or µ (The population mean) for the hypothesis? Then what tests would follow after? T stats or Z stats?
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Solve the problem. Find the standardized test statistic t for a sample with n = 15, x = 8.7, s = 0.8, and a = 0.05 if Ho: Hs 8.4. Round your answer to three decimal places. a. 1.452 b. 1.631 c. 1.728 d. 1.312
Test the claim below about the mean of the differences for a population of paired data at the level of significance a. Assume the samples are random and dependent, and the populations are normally distributed. Claim: H, 20; a= 0.05. Sample statistics: d= -2.2, s, =1.5, n= 14 Identify the null hypothesis by writing its complement. COA. Ho: Ha #0 H: Ho =0 OB. Ho: Pa s0 OC. Ho: Ha =0 OD. Ho: Ha 0 H: Hg <0 The test statistic is t= - 5.49. (Round to two decimal places as needed.) The critical value(s) is(are) t, = - 1.77. (Round to two decimal places as needed. Use a comma to separate answers as needed.) Since the test statistic is V the rejection region, V the null hypothesis. There V statistically significant evidence to reject the claim.
Set up the null and alternate hypotheses to test whether the population mean is equal to 10 when you have a sample mean. H0: Ha:

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At test for a mean uses a sample of 20 observations. Find the t test statistic value that has a P-value of 0.01 when the alternative hypothesis is Ha:u<0. Round your answer to two decimal places. O A. -2.20 О в. -2.54 O c. -2.86 O D. 2.54 O E. 2.20