Question 2>Test the claim that the mean GPA of night students is larger than the mean GPA of day students at the .01significance level.The null and alternative hypothesis would be:Ho: UNPD Ho:PNH1: UN > HD H1:PN + PD Hị :PN < PD Hị:PN > PD H1:HN < µD H1: HN + HD= µD Ho:pNPD Ho:PNPD Ho:µNUD Ho:UNHDThe test is:two-tailed right-tailed left-tailedThe sample consisted of 70 night students, with a sample mean GPA of 2.45 and a standard deviation of0.07, and 60 day students, with a sample mean GPA of 2.41 and a standard deviation of 0.06.The test statistic is:(to 2 decimals)The critical value is: 2.3912 (put this answer in the below to 2 decimals)The critical value is:(to 2 decimals)Based on this we:Reject the null hypothesisO Fail to reject the null hypothesis

The random variable GPA follows normal distribution. There are two independent samples which are…

Answered: Test the claim that the mean GPA of…

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 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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Test the claim about the population mean μ at the level of significance a. Assume the population is normally distributed. Claim: μ> 16; α = 0.05; G = 1.2 Sample statistics: x = 16.3, n=50 O A. Fail to reject Ho. There is not enough evidence at the 5% level of significance to support the claim. OB. Reject Ho. There is enough evidence at the 5% level of significance to support the claim. O C. There is not enough information to decide.
You wish to test the following claim (H1H1) at a significance level of α=0.01. Ho:μ=83.1 H1:μ>83.1You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=14 with a mean of ¯x=86.1and a standard deviation of SD=7.1What is the critical value for this test? (Report answer accurate to four decimal places.) critical value = What is the test statistic for this sample? (Report answer accurate to four 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 greater than 83.1. There is not sufficient evidence to warrant rejection of the claim that the population mean is greater than 83.1. The sample data support the claim…
2. Consider Ho: H1 H2 H3 = Hμ44= μs a. Complete the ANOVA table. Source of Variation Between - column Within-column Total Solutions: Sum of Squares 118 140 df b. Using 1% level of significance, would you reject Ho? Mean Sum of Squares 15.56 F-value Critical Value / Tabular Value Decision
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