You wish to test the following claim (Ha) at a significance level of a = 0.05.H.:µ1 = µ2Ha:H1 < µ2You obtain a sample of size nį = 58 with a mean of M1SD1 = 8.5 from the first population. You obtain a sample of size n2 = 52 with a mean ofM2 = 90.3 and a standard deviation of SD2 = 9.9 from the second population.= 87.8 and a standard deviation ofWhat is the critical value for this test? For this calculation, use the conservative under-estimate forthe degrees of freedom as mentioned in the textbook. (Report answer accurate to three decimalplaces.)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 regionO not in the critical regionThis 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..There is sufficient evidence to warrant rejection of the claim that the first population mean isless than the second population mean.O There is not sufficient evidence to warrant rejection of the claim that the first populationmean is less than the second population mean.The sample data support the claim that the first population mean is less than the secondpopulation mean.O There is not sufficient sample evidence to support the claim that the first population mean isless than the second population mean.

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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 (Ha) at a significance level of a = 0.001. H. µ – 79.9 6'62 < t:"H You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 52 with mean M=82.5 and a standard deviation of SD -= 12.7. 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. MacBook Pro esc 000 F1 D00 F2 F3 F4 F5 F6 ! @ $ & 1 3 4 5 Q W E R tab lock S F G W # CO
It is of interest to determine if the average drying time of a certain brand of latex paint is not 4.5 hours. To do this, 15 cans of the branded latex paint were selected. Normality test of drying time of the branded latex paint: Shapiro-Wilk normality test data: drying time W = 0.9691, p-value = 0.1396 Which of the following is(are) TRUE at 5% level of significance? I. If the p-value of the appropriate test is 0.00412, the conclusion is "there is sufficient evidence to say that the average drying time of a certain brand of latex paint is NOT 4.5 hours. II. Suppose that the 95% confidence interval for the true mean drying time of a certain brand of latex paint is [3.25,4.32]. The NULL HYPOTHESIS WILL BE REJECTED since the hypothesized value of the mean of 4.5 is not within the constructed interval. A. I only B. II only C. Both I and II D. Neither I nor II
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 α=0.05 Ho:μ=73.8 Ha:μ>73.8 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=79 with a mean of M=75.8 and a standard deviation of SD=8.2. 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 =
A sample of size 5 was collected from an unknown population 15 15 16 16 17 1. Use the table of expected z-scores (rounded to the nearest tenth) below to construct the normality plot with expected z-scores on the x-axis and the observations on the y-axis: 6 -1.3 -0.6 -0.2 0.2 0.6 1.3 5 -1.2 -0.5 0 0.5 1.2 -1 19 18 normal O not normal Clear All Draw: 17- 16- 14 T 15- رها 1 2 7 -1.4 -0.8 -0.4 0 0.4 0.8 1.4 8 -1.4 -0.9 -0.5 -0.2 0.2 0.5 0.9 1.4 9 -1.5 -0.9 -0.6 -0.3 0 0.3 0.6 0.9 1.5 2. Based on whether the pattern above is linear or not, in your opinion, was the sample drawn from a normal population or not?
You wish to test the following claim (Ha) at a significance level of α=0.005 Ho:μ=85.5 Ha:μ≠85.5You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=372 with a mean of M=84.8 and a standard deviation of SD=16.5.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... in the critical region not in the critical region 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 claim that the population mean is not equal to 85.5. There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 85.5. The sample data support the claim…
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