Suppose you want to test the claim that 4

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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 average weight of a cuckoo bird is less than 1.6 pounds. what are the null and alternative hypothesis
Angel believes a coin is “fair,” the other believes the coin is biased toward heads. The coin is tossed 20 times, yielding 15 heads. Indicate whether or not the first researcher’s position is supported by the results. Use α = .05. Express statistically the null and alternative hypotheses.
A change is made that should improve student satisfaction with the parking situation at your school. Before the change, 37% of students approve of the parking that's provided. The null hypothesis Ho : p = 0.37 is tested against the alternative H.: p > 0.37 The given hypotheses are incorrect. What are the appropriate hypotheses for performing this significance test? Ho : p = 0.37; Ha :p> 0.37, where p= the true proportion of students that approve of the parking that's provided. Ho : p = 0.37; Ho : p + 0.37, where p= the true proportion of students that approve of the parking that's provided. Ho : p > 0.37; Họ : p = 0.37, where p= the true proportion of students that approve of the parking that's provided. Ho : p = 0.37; H, : p + 0.37, where p the sample proportion of students that approve of the parking that's provided. Ho : p > 0.37; Họ : p = 0.37, where p the sample proportion of students that approve of the parking that's provided.
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A hypothesis test is performed at significance level a=0.05: The p-value is found to be 0.001. What can we conlcude? O Our dataset and statistical test proves that the null hypothesis it true. O The statistical test in inconclusive, and the dataset is neither evidence for or against any hypothesis. O none of these O Our dataset and statistical test leads us to believe the null hypothesis is true, but we cannot say for sure. Our dataset is evidence in support of the null hypothesis. O Our dataset and statistical test leads us to reject the null hypothesis. Our data is statistically significant evidence against the null hypothesis. O Our dataset and statistical test proves that the null hypothesis it false.
All test of hypothesis are based on the assumptions that A. The null hypothesis is true B. The observed difference is important c. The null hypothesis is false and should be rejected D. Type l errors are more serious than type ll errors E. None of the above
For each scenario below read the given null and alternative hypotheses statements as well as the initial decision about the null hypothesis. Post a conclusion about the claim in each test. (This means when you post your answer, you do not need to include any statement about the null hypothesis. Only the final conclusion is needed.) **Chart 1 is attached** 1 Winning team data were collected for teams in different spots. use a .05 level of significance to test the claim that home/visitor wins are independent of the sport. **Table 1 is attached** P-Value=0.762
Suppose you wish to conduct a test of the research hypothesis that the median of a population is greater than 78. You randomly sample 15 measurements from the population and determine that 10 of them exceed 78. Set up and conduct the appropriate test of hypothesis at the 0.10 level of significance. Be sure to specify all necessary assumptions. What are the null and alternative hypotheses for this hypothesis test? A. Ho: n = 78 Ha: 178 C. Ho: n=10 Ha:n> 10 Ε. Ηρ:η=78 Ha:n78 Ho: n=10 Hg: η < 10 OF. Ho: n = 10 Ha: 110
Which of these is true regarding hypothesis tests? If the P-value is less than the specified alpha level, the null is accepted If the P-value is less than the specified alpha level, the null is rejected in favor of the alternative If the P-value is greater than the specified alpha level, the alternative is accepted none of these statements is true If the P-value is greater than the specified alpha level, the null is rejected in favor of the alternative

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