|(a) State the null hypothesis H, and the alternative hypothesis H,. Ho :0 H :0 |(b) Determine the type of test statistic to use. |(Choose one) |(c) Find the value of the test statistic. (Round to three or more decimal places.) |(d) Find the p-value. (Round to three or more decimal places.) |(e) Can we conclude that the proportion of women with anemia in the first country is greater than the proportion of women with anemia in the second country? OYes ONo

|(a) State the null hypothesis H, and the alternative hypothesis H,. Ho :0 H :0 |(b) Determine the type of test statistic to use. |(Choose one) |(c) Find the value of the test statistic. (Round to three or more decimal places.) |(d) Find the p-value. (Round to three or more decimal places.) |(e) Can we conclude that the proportion of women with anemia in the first country is greater than the proportion of women with anemia in the second country? OYes ONo

Name: Let p, and p, be the respective proportions of women with iron-defici
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Description: Let p, and p, be the respective proportions of women with iron-deficiency anemia in each of two developing countries. A random sample of 1800 women fromthe first country yielded 523 women with iron-deficiency anemia, and an independently chosen, ran

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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Professor Nord stated that the mean score on the final exam from all the years he has been teaching is a 79%. Colby was in his most recent class, and his class’s mean score on the final exam was 82%. Colby decided to run a hypothesis test to determine if the mean score of his class was significantly greater than the mean score of the population. α = .01. What is the mean score of the population? What is the mean score of the sample? Is this test one-tailed or two-tailed? Why?
a. The sample proportion is enter your response here. (Round to two decimal places as needed.) Part 2 The sample proportion from this study is the ▼ expected observed proportion of adults in the ▼ sample population that ▼ disapprove approve of the government surveillance program. b. What are the hypotheses for the one-proportion z-test? H0: p=enter your response here; Ha: p ▼ greater than> not equals≠ less than< equals= enter your response here (Type integers or decimals.) What is the test statistic? z=enter your response here (Round to two decimal places as needed.) Identify the P-value. The P-value is enter your response here. (Round to three decimal places as needed.) What is the conclusion of the hypothesis test? A. Do not reject H0; the data do not provide sufficient evidence to conclude that a majority of adults in the country disapprove of the government surveillance program. B. Reject H0;…
Looking at youth depression scores from a general sample of random children in the US, we want to determine if our sample is significantly different than the national average of scores of children with depression in the US. The national average of scores on a measure of depression is 5 points. We have no reason to assume it will be higher or lower than the US national average. The sample: 11 9 12 3 3 4 13 1. What is the null and alternative hypotheses? Do not specify any directionality. 2. What did you discover (using 95% Cl)? Provide an interpretation.
econometrics
(e) If the researcher decides to test this hypothesis at the x = 0.05 level of significance, will the researcher reject the null hypothesis? Yes O No
-what kinds of questions can we test with a t test? -How do you know if two samples are statistically different from each other? In other words, what statistics will tell you if your results are statistically significant?
Three students, an athlete, a fraternity member, and an honors student, record the number of hours they slept each night for 20 nights. O JMP Applet imp ? Oneway Analysis of Sleep Hours By Student Oneway Analysis of Sleep Hours By Student 10 Oneway Anova 14 Summary of Fit 12 Rsquare 0.024506 10- Adj Rsquare Root Mean Square Error Mean of Response Observations (or Sum Wgts) -0.00072 1.99517 7.7 60 Analysis of Variance Sum of Mean F Prob > Source DF Squares Square Ratio F 2 Athiete Frat Honors Student 2 5.70000 2.85000 0.7180 0.4931 Student Error 57 226.90000 3.98070 C. Total 59 232.60000 Oneway Anova Means for Oneway Anova Std Lower Upper 95% Summary of Fit Level Number Mean Error 95% Athlete 20 8.10000 0.44813 7.2086 8.9934 Rsquare 0.024506 Frat 20 7.65000 0.44813 6.7588 8.5434 Adj Rsquare Root Mean Square Error Mean of Response Observations (or Sum Wgts) -0.00972 Honors 20 7.35000 0.44813 6.4586 8.2434 1.99517 Std Error uses a pooled estimate of error variance 7.7 60 Analysis of…
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a. If a null hypothesis is rejected with a significance level of 0.05, is it also rejected with a significance level of 0.01? Why or why not? Suppose the level of significance for carrying out the test is lowered from 5% to 1%. As a result, has the likelihood of rejecting the null hypothesis when it is true increased or decreased? Explain