If your null and alternative hypothesis are:Ho: μ = 82нHy:μ < 82Then the test is:O two tailedO left tailedOright tailed

H0 : μ = 82H1 : μ < 82we have to identify type of test.

Answered: If your null and alternative hypothesis…

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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Q12. Researchers establish the rate of false rejection of the null hypothesis prior to conducting any testing for significance. a. TrueB. FalseC. None of the above
Two independent samples are taken from two approximately normal populations to test Ho:H = µ2 versus HA: H1 + µ2 %3D If the t-test statistic is t=1.803 with df=25, which of the following is the correct conclusion at the 10% level?
On a certain hearing ability test, the mean is 300 and the standard deviation is 20. Thebetter you can hear, the higher your score. Can people who clean their ears frequentlyhear better than others? You take a sample of 31 people who clean their earsfrequently. Their sample mean test score is 308. Do a hypothesis test with α = 0.01.H 0 : People who clean their ears regularly hear at the same level that everyone elsedoes: µ = 300. c. Calculate your test statistic and draw it on your null hypothesis curve. This is justyour sample statistic ( or ) converted to a Z-score on your null hypothesis samplingdistribution. Make sure you are using the appropriate SE formula! Use forproportions and for means. d. Treat your test statistic as a Z-score and look up the area beyond it in the Z-table.That is your p-value. It may be helpful to shade this on your curve. (Remember, ifyou have a < in your alternative hypothesis, you’re looking at the area below yourtest statistic. If you have a…
answer 4
You are performing a left-tailed z-cest Ifa = .10, and your test statistic is z = 3.1. do you: O Reject Null Hypothesis OFail to Reject Null Hypothesis
Claim: The mean systolic blood pressure of all healthy adults is less than than 119 mm Hg. Sample data: For 283 healthy adults, the mean systolic blood pressure level is 118.53 mm Hg and the standard deviation is 15.06 mm Hg. The null and alternative hypotheses are Ho μ=119 and H₁: μ< 119. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies:HoHo : pA=0.15p; pB=0.3; pC=0.15; pD=0.4pComplete the table. Category ObservedFrequency ExpectedFrequency SquaredResidual A 16 B 33 C 16 D 43 What is the chi-square test-statistic for this data?χ2=Report all answers accurate to three decimal places.VERY IMPORTANT NOTE: Answers are reported to 3 decimal places, but you should use all the decimal places to calculate the final chi-square test statistic...DO NOT use the rounded number you report in the table.
Q 6. Researchers developed a "dog IQ test" and find that the population of dogs in the United States has a mean score of µ = 20 on this test with a standard deviation of σ = 2. You decide to collect a sample of n = 20, where all of the dogs are poodles, because you suspect maybe poodles aren't really so smart. The mean IQ of your sample of poodles is M = 19. What is the probability of this sample? That is, what is p(M<19)? (Hint: remember the sample size is now n = 20.)
Need the H0 and H1 values. Can use != for not equal to.
(c) Fort= 1.653, should you reject or fail to reject the null hypothesis?
answer 2
Suppose are running a study/poll about the probability of catching the flu this year. You randomly sample 80 people and find that 53 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho:p = 0.68 H:p > 0.68 Calculate the test statistic, rounded to 3 decimal places = Z

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If your null and alternative hypothesis are: = 82 Ho:μ H1 :μ < 82 Then the test is: two tailed O left tailed right tailed