This test statistic leads to a decision to...O reject the nullO accept the nullO fail to reject the nullAs such, the final conclusion is that....O There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test from pre-test is less than 0.O There is not sufficient evidence to warrant rejection of the claim that the mean difference ofpost-test from pre-test is less than 0.O The sample data support the claim that the mean difference of post-test from pre-test is lessthan 0.O There is not sufficient sample evidence to support the claim that the mean difference of post-test from pre-test is less than 0. You wish to test the following claim (H) at a significance level of a = 0.02. For the context of thisproblem, a = 2-1 where the first data set represents a pre-test and the second data setrepresents a post-test.Ho: d = 0Ha: Ma < 0You believe the population of difference scores is normally distributed, but you do not know thestandard deviation. You obtain pre-test and post-test samples for n = 46 subjects. The averagedifference (post-pre) is d=-11 with a standard deviation of the differences of sa = 26.6.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic =What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value =The p-value is...O less than (or equal to) aO greater than a

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Answered: You wish to test the following claim…

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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You wish to test the following claim (H) at a significance level of a = 0.001. For the context of this problem, = new old where the first data set represents the rating for an old product and the second data set represents the scores for the new product. Ho: Md = 0 Ha:ld > 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: old new 91.6 63.6 85.3 50 47.7 83.5 71.8 78.7 54 63.3 100.5 55.6 105.8 87.6 101.8 62.3 110 100.7 90.4 67.1 What is the test statistic for this sample? (Report answer accurate to three decimal places.) t = The p-value is ...
You wish to test the following claim (H.) at a significance level of a= 0.002. For the context of this problem, = P2-A where the first data set represents a pre-test and the second data set represents a post-test. H. = 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation You obtain pre-test and post-test samples for n = 10 subjects. The average difference (post - pre) is d -32.1 with a standard deviation of the differences of sa = 36.7.
Suppose you are interested in testing whether average monthly gasoline expenditure differs from $50 at the 5% significance level. You take a sample of 30 and calculate a sample mean of 51 and sample standard deviation of 12. Given this information the null and alternative hypotheses are as follows: H0: μ=50 H1: μ≠50 What is the test statistic for this test? (Round to four decimal places. )
You wish to test the following claim (Ha) at a significance level of a = 0.005. For the context of this problem, µd = µ2 - H1 where the first data set represents a pre-test and the second data set represents a post-test. H,:µd = 0 0 > Prt : ºH You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 38 subjects. The average difference (post - pre) is d = - 8.2 with a standard deviation of the differences of sd = 42.3. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant…
You wish to test the following claim (Ha) at a significance level of a = 0.01. You believe both populations are normally distributed, but you do not know the standard deviations for either. And you have no reason to believe the variances of the two populations are equal You obtain a sample of size n = 26 with a mean of E = 65.1 and a standard deviation of s1 = 20.3 from the first population. You obtain a sample of size ny = 27 with a mean of ī2 = 81.8 and a standard deviation of s2 = 14.9 from the second population. a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? For this calculation, use. p-value = Use Technology Round to 4 decimal places. c. The p-value is... O less than (or equal to) a O reater than a d. This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null e. As such, the final conclusion is that... O There is sufficient evidence to warrant…
You wish to test the following claim (H) at a significance level of a = 0.005. For the context of this problem, µd = µ2 – H1 where the first data set represents a pre-test and the second data set represents a post-test. H.:µd = 0 0 > Prl : "H You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: pre-test post-test 51 49.9 50.5 20.7 57.7 37.6 33.1 29.1 53.1 25.9 64.1 55.5 46.7 51.5 64.1 46.5 What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = The test statistic is... O in the critical region O not in the critical region This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of…
You wish to test the following claim (Ha) at a significance level of a = 0.001. t = I1:"H You believe both populations are normally distributed, but you do not know the standard deviations for either. And you have no reason to believe the variances of the two populations are equal You obtain a sample of size n = 20 with a mean of E = 79.7 and a standard deviation of s1 = 11.5 from the first population. You obtain a sample of size nr = 26 with a mean of I2 = 81.7 and a standard deviation of s2 = 10.4 from the second population. a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? For this calculation, use. p-value = Use Technology, Round to 4 decimal places. c. The p-value is... O less than (or equal to) a O greater than o d. This test statistic leads to a decision to.. O eject the null O accept the null O fail to reject the null e. As such, the final conclusion is that... O There is sufficient evidence to…
You wish to test the following claim (Ha) at a significance level of a=0.02. H0: u=83.9 Ha:u<83.9 You believe the population is normally distributed but you do not know the standard deviation. You obtain a sample of size n=119 with the meanM=79.4 and a standard deviation of SD=12.9. What is the test statistic foe this sample? What is the P value for this sample? The p value is less than or greater than a? This test statistic leads to a decision to: reject the null, accept the null, or fail to reject the null?
PLEASE ANSWER THE QUESTION IN THE PHOTO. TY!
You wish to test the following claim (H.) at a significance level of a = = 0.02. H.: 41 Ha: µ1 – µ2 > 0 You obtain a sample of size ị the first population. You obtain a sample of size n2 of s2 57.2 and a standard deviation of s1 85 with a mean of 2 65 with a mean of x1 17.2 from 54.7 and a standard deviation 7.1 from the second population. You will need to determine whether or not to pool so you will use the correct df. What is the critical value for this test? Report answer accurate to three decimal places. critical value =
You wish to test the following claim (HaHa) at a significance level of α=0.002. For the context of this problem, μd=μ2−μ1where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0 Ha:μd>0You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=40subjects. The average difference (post - pre) is ¯d=2 with a standard deviation of the differences of sd=18.5.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the…
The output below is for a t-test for the hypothesis: Individuals living in bad neighborhoods commit more crime than those living in good neighborhoods. The data in the Group Statistics section provides you with the average number of crimes committed by individuals living in good and bad neighborhoods and the standard deviation of this same variable. The findings of significance are located in the Independent Samples Test section. Pay particular attention to the "t" column and the "Sig (2-tailed)"column. The "t" column is the t value that you would have calculated by hand (as we learned in class). The "Sig (2-tailed)"column provides you with the p value (the level of significance of this relationship). In this column, any value below .05 indicates that you would have rejected your null hypothesis. 1. Can someone tell me about the relationship of all these data? I'm trying to determine if my hypothesis, listed below, can be proven or disproven? 2. What is the independent variable and…

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