Do political science classes require less writing than history classes? The 43 randomly selected political scienceclasses assigned an average of 14.6 pages of essay writing for the course. The standard deviation for these 43classes was 5.9 pages. The 52 randomly selected history classes assigned an average of 15.4 pages of essaywriting for the course. The standard deviation for these 52 classes was 4.5 pages. What can be concluded atthe a= 0.01 level of significance?For this study, we should use Select an answera. The null and alternative hypotheses would be:Ho: Select an answerH₁: Select an answerSelect an answer CSelect an answer CSelect an answerb. The test statistic?Oc. The p-value =d. The p-value is? ae. Based on this, we should Select an answer the null hypothesis.f. Thus, the final conclusion is that ...Add WorkSelect an answer> Next Question(please show your answer to 3 decimal places.)O The results are statistically insignificant at a = 0.01, so there is insufficient evidence to concludethat the population mean number of pages of writing that political science classes require is lessthan the population mean number of pages of writing that history classes require.(Please show your answer to 4 decimal places.)O The results are statistically insignificant at a = 0.01, so there is statistically significant evidenceto conclude that the population mean number of pages of writing that political science classesrequire is equal to the population mean number of pages of writing that history classes require.O The results are statistically significant at a = 0.01, so there is sufficient evidence to concludethat the mean number of required pages for the 43 political science classes that were observed isless than the mean number of required pages for the 52 history classes that were observed.O The results are statistically significant at a = 0.01, so there is sufficient evidence to concludethat the population mean number of pages of writing that political science classes require is lessthan the population mean number of pages of writing that history classes require. classes assigned an average of 14.6 pages of essay writing for the course. The standard deviation for these 43classes was 5.9 pages. The 52 randomly selected history classes assigned an average of 15.4 pages of essaywriting for the course. The standard deviation for these 52 classes was 4.5 pages. What can be concluded atthe a= 0.01 level of significance?For this study, we should use Select an answera. The null and alternativeHo: Select an answerH₁: Select an answerb. The test statistic?c. The p-value =d. The p-value is ? ae. Based on this, we shoulf. Thus, the final conclusiO The results are sthat the populatithan the populatiO The results are sto conclude thatrequire is equal tAdd Work3> Next Question✓ Select an answer$t-test for the differencebetween two dependentpopulation means4t-test for apopulation meant-test for the differencebetween two independentpopulation meansz-test for a populationproportionz-test for the differencebetween two populationproportionsO The results are statistically significant at a = 0.01, so there is sufficient evidence to concludethat the mean number of required pages for the 43 political science classes that were observed isless than the mean number of required pages for the 52 history classes that were observed.%› 3 decimal places.)The results are statistically significant at a = 0.01, so there is sufficient evidence to concludethat the population mean number of pages of writing that political science classes require is lessthan the population mean number of pages of writing that history classes require.5places.)6i.there is insufficient evidence to concludeit political science classes require is lessat history classes require.there is statistically significant evidencef writing that political science classesof writing that history classes require.&78

n1=43,n2=52,x1¯=14.6,x2¯=15.4,s1=5.9,s2=4.5

Answered: Do political science classes require…

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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Insurance Company A claims that its customers pay less for car insurance, on average, than customers of its competitor, Company B. You wonder if this is true, so you decide to compare the average monthly costs of similar insurance policies from the two companies. For a random sample of 13 people who buy insurance from Company A, the mean cost is $150 per month with a standard deviation of $19. For 9 randomly selected customers of Company B, you find that they pay a mean of $157 per month with a standard deviation of $16. Assume that both populations are approximately normal and that the population variances are equal to test Company A's claim at the 0.05 level of significance. Let customers of Company A be Population 1 and let customers of Company B be Population 2. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Ho: M₁ = μ₂ Ha:M₁ •H₂
. A university examines the variability in the math scores of students accepted to the business and engineering schools. The table below presents sample data from the most recent incoming class.Engineering BusinessSample Standard Deviation 122.4 106.5Sample Size 16 19Perform a hypothesis test to determine whether the variation in math scores is different if ? = 0.05.
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bcd.
Insurance Company A claims that its customers pay less for car insurance, on average, than customers of its competitor, Company B. You wonder if this is true, so you decide to compare the average monthly costs of similar insurance policies from the two companies. For a random sample of 1313 people who buy insurance from Company A, the mean cost is $151$⁢151 per month with a standard deviation of $16$⁢16. For 99 randomly selected customers of Company B, you find that they pay a mean of $158$⁢158 per month with a standard deviation of $19$⁢19. Assume that both populations are approximately normal and that the population variances are equal to test Company A’s claim at the 0.050.05 level of significance. Let customers of Company A be Population 1 and let customers of Company B be Population 2. Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
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Do political science classes require more writing than history classes? The 54 randomly selected political science classes assigned an average of 16.4 pages of essay writing for the course. The standard deviation for these 54 classes was 4.8 pages. The 52 randomly selected history classes assigned an average of 15.8 pages of essay writing for the course. The standard deviation for these 52 classes was 4.6 pages. What can be concluded at the a = 0.10 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer H1: Select an answer Select an answer Select an answer b. The test statistic ? V = (please show your answer to 3 decimal places.) c. The p-value = d. The p-value is ? Va e. Based on this, we should Select an answer f. Thus, the final conclusion is that ... |(Please show your answer to 4 decimal places.) ] the null hypothesis. O The results are statistically…
... ... ... ..
Do political science classes require less writing than history classes? The 47 randomly selected political science classes assigned an average of 19 pages of essay writing for the course. The standard deviation for these 47 classes was 5.6 pages. The 56 randomly selected history classes assigned an average of 21.9 pages of essay writing for the course. The standard deviation for these 56 classes was 4.1 pages. What can be concluded at the a = 0.10 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v H: Select an answer v Select an answer v Select an answer v b. The test statistic ? v = (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? va e. Based on this, we should Select an answer v the null hypothesis. f. Thus, the final conclusion is that ... O The results are statistically…
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Do political science classes require more writing than history classes? The 40 randomly selected political science classes assigned an average of 13.1 pages of essay writing for the course. The standard deviation for these 40 classes was 3.9 pages. The 53 randomly selected history classes assigned an average of 10.8 pages of essay writing for the course. The standard deviation for these 53 classes was 5.6 pages. What can be concluded at the a = 0.05 level of significance? For this study, we should use Select an answer ↑ a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer H₁: Select an answer Select an answer Select an answer b. The test statistic ? (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? a e. Based on this, we should Select an answer the null hypothesis. f. Thus, the final conclusion is that …..

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