1)In a test for the difference between two proportions, the sample sizes were n1 = 79 andn2 = 89, and the numbers of events were x1 = 51 and x2 = 38. A test is made of thehypothesis H0: p1 = p2 versus H1: p1p2.Compute the value of the test statistic.1)A)2.83B)3.07C)2.94D)2.91
2)In a random sample of 310 cars driven at low altitudes, 41 of them exceeded a standardof 10 grams of particulate pollution per gallon of fuel consumed. In an independentrandom sample of 95 cars driven at high altitudes, 21 of them exceeded the standard.Compute the test statistic for testing if the proportion of high-altitude vehicles exceedingthe standard is greater than the proportion of low-altitude vehicles exceeding thestandard.2)A)-0.13B)-2.10C)-4.43D)2.1
3)A study reported that in a sample of 93 men, 23 had elevated total cholesterol levels(more than 200 milligrams per deciliter). In a sample of 104 women, 21 had elevatedcholesterol levels.Can you conclude that the proportion of people with elevated cholesterol levels differsbetweenmen and women? Use the Į = 0.01 level of significance.3)A)NoB)Yes
1)In a test for the difference between two proportions, the sample sizes were n1 = 79...
In a test for the difference between two proportions, the sample sizes were n1=68 and n2=76 , and the numbers of successes in each sample were x1=41 and x2=25 . A test is made of the hypothesis Ho:p1=p2 versus H1:P1>p2 are the assumptions satisfied in order to do this test?Explain. B) Find the test statistics value C) Can you reject the null hypothesis at the a=0.01 significance level? Use Ti-84 for calculations please.
1) Based on a sample of 600 people, 33% owned cats The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) 2) Based on a sample of 80 men, 30% owned cats Based on a sample of 60 women, 45% owned cats The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) 3) Exercise 6.13 presents the results of a poll evaluating support for the health care public option plan in 2009. 70% of 819 Democrats and 42%...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value associated with our test statistic is greater than the significance level of the test we have chosen. c. our sample mean is smaller than the population mean. d. the p value associated with our test statistic is smaller than the significance level of the test we have chosen. 2. In a study of simulated juror decision making, researchers...
for these questions I need help on just the questions on all of them where it says "what is the value of the sample test statistic?" 24.) The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with σ ≈ 600 miles. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.9thousand miles. Does this indicate that the average miles driven per...
Chapter overview 1. Reasons for international trade Resources reasons Economic reasons Other reasons 2. Difference between international trade and domestic trade More complex context More difficult and risky Higher management skills required 3. Basic concept s relating to international trade Visible trade & invisible trade Favorable trade & unfavorable trade General trade system & special trade system Volume of international trade & quantum of international trade Commodity composition of international trade Geographical composition of international trade Degree / ratio of...
I need help with research critique summary of this below article in APA format and in text citation and the reference en/poni%20perception%20article.pdf EATING DISORDERS 2018, VOL. 26, NO. 2, 107-126 https://doi.org/10.1080/10640266,2017.1318624 Routledge Taylor & Francis Group PREVENTION SERIES Check to Perceptions of disordered eating and associated help seeking in young women Annamaria J. McAndrew and Rosanne Menna Department of Psychology, University of Windsor, Windsor, Ontario, Canada ABSTRACT Disordered eating is common among young women, but rates of help-seeking are remarkably...