1. The null hypothesis is said to be rejected *in a right tailed test if the computed valueisthe critical value.O a. Equal toO b. Greater thanO c. Less thanO d. No relevance to2. The alternative hypothesis is supported *in a left tailed test if the computed value isthe critical value.O a. Equal toO b. Greater thanO c. Less thanOd. No relevance to

The question is about decision rule in hypothesis test

Answered: 1. The null hypothesis is said to be…

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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Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 136 to 192 cm and weights of 39 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x overbar equals 167.79cm, y overbar equals 81.47 kg, requals 0.113 , P-valueequals 0.263, and ModifyingAbove y with caret equalsnegative 107 plus 1.06x. Find the best predicted value of ModifyingAbove y with caret (weight) given an adult male who is 144 cm tall. Use a 0.01 significance level.
7. As noted on page 320, when the two populanon Hedils are equal, the estimated standard error for the independent-measures i test provides a measure of how much difference to expect between twoG sample means, For each of the following situations, assume that i should be expected between the two sample means. 2. One sample has n = second sample has n = b. One sample has n = 8 scores with SS the second sample has n = €. In part b, the samples have larger variability (bigger SS values) than in part a, but the sample sizes are unchanged. How does larger variability affect the size of ihe standard error for the sampie mean difference? l2 and calculate how much difference 8 scores with S3 = 45 and the 4 scores with SS = 15. 150 and 4 scores with SS = 90.
4. Given are x = 35, µ = 38, s = 10, n = 20, Determine the statistical test to be used. ール Test Statistic: Z =" Test Statistic: t = A. В. 5. Given are x = 90, µ = 88, o = 6, n = 100. Find the value of z. A. 3.33 B. - 3. 33
Write the claim and the null and the alternate hypotheses. 2. Identify α. 3. Draw a distribution to represent it and identify the critical value(s). 4. Write the inequality that identifies the rejection area(s). 5. Find the test statistic, p-value, and the correlation coefficient. 6. Make a decision about your test. 7. Write a sentence describing your decision about the claim in context with the problem.
Please solve for G, H, and I.
The test statistic for testing HO: mu = 100 against Ha: mu != 100 wast 3.3, with p-value of 0.001. Which of these is the correct conclusion? Since the p-value is very small, we conclud that mu != 100 Since the p-vaue is very smal, we are unable to conlude that mu != 100 Since the p-value is very small, we must conclude the mu = 100 In order to interpret the results, we must first know the sample size. Since the p-value is very small, we are unable to conclude that mu = 100.
How would a person set up the hypotheses if they wanted to test the claim: the mean temperature of a October day in Oahu is different from 81 degrees? A: Ho µ = 81° vs HA H > 81° B: Ho H = 81° vs HA H 81° A
The average age of managers in a particular industry is over 35 years old, and we wishe to prove this. The null hypothesis to conduct a statistical test on this theory would be: the population mean is ˃ 35, or the population mean is ≤ 35 or the population mean = 35 or the population mean is ≥ 35.
Not sure how to start or do
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly smaller than 60% at a level of significance of a = 0.10. According to your sample, 31 out of 60 potential voters prefer the Democratic candidate.
A researcher developing scanners to search for hidden weapons at airports has concluded that a new scanner is significantly better than the current scanner. He made his decision based on a test using a = 0.05. Would he have made the same decision at a = 0.20? How about α = 0.01? Explain. Select the statement relating decision making to values of a. O A. His decision would have been the same for a = 0.01 but may have been different for a = 0.20. O B. His decision would have been the same for α = 0.20 but may have been different for α = 0.01. O C. His decision may have been different for both α = 0.01 and α = 0.20. O D. His decision would have been the same for both α = 0.01 and α=0.20.

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