(c) Fort= 1.653, should you reject or fail to reject the null hypothesis? State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain.(a) t= - 1.668(b) t= 1.566(c) t= 1.653(d) t= - 1.677- -1821121O C. Reject Ho, because - 1.621 1.621.O C. Reject Ho, because t< - 1.621.O D. Reject Ho, because - 1.621 1.621.O C. Fail to reject Ho, because - 1.621 State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain.(a)t= - 1.668(b) t=1.566(c) t= 1.653(d) t= - 1.677-121to1.21(a) For t= - 1.668, should you reject or fail to reject the null hypothesis?A. Reject Ho, because t< -1.621.O B. Fail to reject Ho, because t> 1.621.O C. Reject Ho, because - 1.621 1.621.O C. Reject Ho, because t< -1.621.O D. Reject Ho, because - 1.621

c) The test statistic value is 1.653.

Answered: (c) Fort= 1.653, should you reject or…

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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Suppose the null hypothesis, H0, is: a weightlifting bar can withstand weights of 800 pounds and less. And the alternative hypothesis, Ha, is: a weightlifting bar can withstand weights of more than 800 pounds.What is the Type I error in this scenario? Select the correct answer below: You say there is insufficient evidence to conclude that the weightlifting bar can withstand weights of more than 800 pounds when, in fact, it can not. You say there is insufficient evidence to conclude that the weightlifting bar can withstand weights of more than 800 pounds when, in fact, it can. You say there is sufficient evidence to conclude that the weightlifting bar can withstand weights of more than 800 pounds when, in fact, it can not. You say there is sufficient evidence to conclude that the weightlifting bar can withstand weights of more than 800 pounds when, in fact, it can.
State the null and alternative hypotheses of the following statements and determine if it is one tailed or two tailed test.
for a two tailed test, if z=2.04, find the p value
16
Who will you vote for? A simple random sample of 1500 voters were surveyed and asked whether they were planning to vote for the incumbent mayor for re-election. Seven hundred ninety-eight of them replied that they were planning to vote for the mayor. The mayor claims that more than half of all voters are planning to vote for her. To test this claim, a test of the hypotheses H0: p = 0.5 versus H1: p > 0.5 is performed. a. Show that the P-value is 0.007. b. The P-value is very small, so H0 is rejected. A pollster claims that because the P-value is very small, we can be fairly certain that the population proportion p is greater than 0.5, but we cannot be certain that it is a lot greater. Is this a correct interpretation of the P-value?
You are testing the null hypothesis µ=30 versus the two tailed alternative. You fail to reject the null hypothesis. If in reality, µ does equal 30, you have made a: Type I error Type II error Correct Decision
Imagine you are doing a Related-Samples t-test, and you are on Step Two of the hypothesis test. The sample of difference scores that you calculated is -1, -1, -3, +2, 0, -4. If you are doing the test with α = .01, and two tails, what would he correct t-critical be?
What is E(T) where is a T random variable with 17 degrees of freedom?
In the prior presidential election, the average voter turnout in Miami was 57%. You think this will change in the next presidential election. Which is the null hypothesis? H0: turnout = 57% H0: turnout ≠ 57%
Suzette does an experiment where she collects date from 5 women snd obtains the scores: 4, 4, 5, 2, 5. She hypothesizes that the population mean for the population from which these scores are drawn is 3. She wants to test whether this hypothesis is true. What is the alternative hypothesis she is testing?
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You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly larger than 74% at a level of significance of = 0.01. According to your sample, 51 out of 62 potential voters prefer the Democratic candidate. a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?> Select an answer (please enter a decimal) H₁ Select an answer (Please enter a decimal) c. The test statistic? = your answer to 3 decimal places.) d. The p-value = to 4 decimal places.) e. The p-value is ? ✰ a (please show (Please show your answer f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... The data suggest the population proportion is not significantly larger than 74% at a = 0.01, so there is not sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is larger than 74%. The data suggest the population proportion is not…

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