Hypothesis Test for a Population MeanTest the claim that the mean GPA of night students is largerthan 2.7 at the 0.025 significance level. The test is basedon a sample of 70 people, the sample mean GPA was 2.74with a standard deviation of 0.05.The null and alternative hypothesis would be:Ho:p =—D 0.675 Но:р > 0.675 Но: и — 2.7H1:p + 0.675 H1:p < 0.675 H1: µ + 2.7Họ: µ 2 2.7 Ho :p < 0.675 Ho: µ < 2.7H1: µ < 2.7 H1 :p > 0.675 H:µ > 2.7The test is:two-tailed left-tailed right-tailedThe test statistic is:(to 2decimals)The p-value is:(to 2decimals)Based on this we:Reject the null hypothesisFail to reject the null hypothesis

We have given that μ = 2.7 , s = 0.05 , n= 70 , X̄ = 2.74 level of significance = ? =…

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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The CDC is concerned that teenagers are being pushed into too many out-of-school activities. Their studies conclude that two out-of-school activities is the healthiest amount. You sample 49 students from the local high school and find that on average they participate in 5 activities with a standard deviation of 2. Use α = .01 for a two-tailed test. What is the cut-off value of t?
The students at your school claims that it takes at least 15 minutes to find a parking space. The security performed a study and found that the mean time to find a parking space for randomly selected 25 students were 14.2 with a standard deviation of 3.2. Use a = 0.05 to test student's claim. In this case, the alternate hypothesis is Ο μ > 15 Ομ > 15 Ο μ < 15 Ο μ < 15 μ<
One-Sample Z: Test of 35 vs not 35 %3D The assumed standard deviation 1.8 Variable N Мean StDev SE Mean 25 35.710 1.475 а. b. с. d. Is this a one-sided or a two-sided test? e. What would be the P-value if the alternative hypothesis is H1: µ > 35 v a. a. 0.00805 v b. b. 0.0243 v C. c. 2.4068 v d. d. 0.0486 е. 1.9722 е. f. Two-sided hypothesis test g. 0.295 h. One-sided test because alternative hypothesis, H : µ # 35 i. 0.360
You want to test the speed of your internet connection. You will test the claim that your average speed is greater than 4.3 Mb/s. You collect data 39 different times, and among that sample, the average speed is 4.9 Mb/s. Assume internet speeds are normally distributed with a standard deviation of 1.1 Mb/s.a. State the null and alternative hypothesis for the claim that your average speed is greater than 4.3 Mb/s. Ho: ? ___4.3 Ha: ? ___ 4.3 Please explain to me how you determine the sign that goes into the blank space. b. The (null or alternative) hypothesis is the claim c. The goal of the test is to (support or reject) the claim.
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