What is the conclusion for this hypothesis test?O A. Fail to reject Ho. There is insufficient evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.B. Reject Ho. There is sufficient evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.C. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.D. Reject Ho. There is insufficient evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.Does the background color appear to have an effect on the variation of word recall scores?OA. Yes, the variation of word recall scores appears to be different when the color is changed.B. Yes, the variation of word recall scores appears to be the same when the color is changed.C.No, the variation of word recall scores appears to be different when the color is changed.D. No, the variation of word recall scores appears to be the same when the color is changed. Words were displayed on a computer screen with background colors of red and blue. Results from scores on a test of word recall are given below. Use a 0.05 significance level to test the claim that the samples are frompopulations with the same standard deviation. Assume that both samples are independent simple random samples from populations having normal distributions. Does the background color appear to have an effect on the variationof word recall scores?nxS34 15.43 5.97Red BackgroundBlue Background36 12.64 5.42What are the null and alternative hypotheses?A. Ho: 0²/12 #0²/22OB. H₂:0²=0₂2H₁:0² = 0²/2H₁:0² <0²/2OC. H₂:0² = 0²₂2H₁: 0²1 20²2/2OD. H₂:0² = 0²/2H₁:0² *0²/2Identify the test statistic.F= (Round to two decimal places as needed.)Use technology to identify the P-value.The P-value is (Round to three decimal places as needed.)

For Red background n1=34 x1=15.43s1=5.97 For Blue background n2=36 x2=12.64s2=5.42

Answered: displayed computer given below. Use ith…

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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Calculate the standard deviation and variance of the sample data shown, to two decimal places 19.4 9.9 24.8 11.8 16.1 7.5 Standard deviation: Variance: Question Help: OVideo Check Answer here to search F3 F4 F5 F6 F7 F8 F9 F1 @ %23 & 3 4. 7 8. W T Y U S G * CO 本 Cl LL 吉
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Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.05 significance level to test for a difference between the measurements from the two arms. What can be concluded? 143 140 141 136 133 Right arm Left arm 180 174 192 140 144 In this example, . is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: Ha = 0 O B. Ho: Hd #0 0 = Prt :H O D. Ho: Hd =0 H O C. Ho: Ha 0 Identify the test statistic. t%3D (Round to two decimal places as needed.) Identify the P-value. P-value (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test?…
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Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.10 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm Left arm 143 179 OA. Ho: H0 H₁: Hd=0 OC. Ho: P = 0 H₁: Hd 0 sufficient evidence to support the claim of a difference in measurements between the two arms.
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