Fill the details/instructions form and checkout for your essay - pro writers; top college graduates only in less than 5 mins, NO AI—Plagiarism-free!.
Posted: November 5th, 2022
1.Your boastful roommate claims that fans for the Seattle Seahawks (the cityâs football team) are simply more intelligent thanthe average person. With your newly-developed statistical tools, you decide to put this hypothesis to the test. You know thatthe standard intelligence quotient (IQ) score has a population mean of 100 with a standard deviation of 15. You find that arandom sample of 121 Seahawks fans has an average IQ score of 103. Use this evidence to test your roommateâs argumentthat Seahawks fans are more intelligent than the general population.a. What is the null hypothesis for this test?b. What is the alternative hypothesis for this test?c. Is this a one-sided or two-sided test? How do you know?d. Will you use a z-test or a t-test in this situation? Why?e. What is the critical value of the test statistic?f. What is the value of the test statistic calculated from the sample results?g. What decision about the null hypothesis does your test lead to?h. What does this indicate about the intelligence of Seahawks fans relative to the average person?i. Would your decision be different if you used an alpha level of .01? Explain.2.Through careful genetic engineering, you have produced what you call the Super Tree â a tree that can absorb extraordinaryamounts of carbon dioxide (CO2), thereby helping to slow the process of global warming. Past research has shown that aregular tree absorbs 48 pounds of (CO2) per year but you find that in a random sample of 36 of your own trees, the averageamount of CO2 absorbed is 54.3 pounds with a standard deviation of 18. Using an alpha level of .05, test the hypothesis thatthe average CO2 absorption in your population of Super Trees is better than the typical tree.a. What is the null hypothesis for this test?b. What is the alternative hypothesis for this test?c. Is this a one-sided or two-sided test? How do you know?d. Will you use a z-test or a t-test in this situation? Why?e. What is the critical value of the test statistic?f. What is the value of the test statistic calculated from the sample results?g. What decision about the null hypothesis does your test lead to?h. What does this indicate about the CO2 absorption of your Super Trees?i. Would your decision be different if you used an alpha level of .01? Explain.3.A criminologist is interested in whether there was any disparity in sentencing based on the race of the defendant. Sheselected a random sample of 18 burglary convictions and recorded the prison terms given to the 10 white defendants and the8 black defendants sampled. The sentence lengths (in years) for individuals in the two groups are shown below. Using thesedata and a .05 alpha level, test the null hypothesis that whites and blacks convicted of burglary in this jurisdiction do notdiffer with respect to prison sentence length.Whitedefendants3547456432a.b.c.d.e.f.Blackdefendants48735454What is the null hypothesis for this test?What is the alternative hypothesis for this test?Is this a one-sided or two-sided test? How do you know?Will you use a z-test or a t-test in this situation? Why?What is the critical value of the test statistic?What is the value of the test statistic calculated from the sample results?g.h.i.j.What decision about the null hypothesis does your test lead to?Is the observed racial difference in sentence length statistically significant? Explain.Would your decision be different if you used an alpha level of .01? Explain.If you increased the size of your sample by five times so that you had 50 white defendants and 40 black defendants, butthe group means and variances remained the same, would you reach the same conclusion about the statisticalsignificance of the racial difference in sentencing? Report the numbers used to make your decision.
Tags: Ace My Homework: Essay Help, Assignment Help: USA's #1 Online Assignment Writing Service, Do My Assignment for Me Online - Write Academic Papers, Reliable Online Homework Help For You, UK Homework Study Bay: Assignment Homework Help & Homework Answers, Write My Assignments AU - Online Assignment Maker - Writing ServicesEvery student wants the best grades and that’s our Focus
Our team consists of outstanding writers who have specialized knowledge in specific subject areas and professionals experienced in academic research writing. They hold at least a graduate degree—230 with Masters and MSN qualifications, experts carefully selected and trained to ensure the best quality of our work. .
We’re dedicated to bringing on board top-notch writers who can provide excellent work at prices that make sense for college students; affordable papers. Our goal? To give you the best bang for your buck without ever compromising on the quality of our essay writing services—or the content of your paper. #Don’t forget to use the DISCOUNT code in the COUPONS section of the order form before you pay!.
The service guarantees that our final work is 100% original, rearched and human written expertly. We are committed to delivering plagiarism-free and AI-free work to each university/college student's 'write my paper' request. To uphold this promise, we check every draft for any possible instances of duplication, wrong citation, grammar errors and artificiality before we send it to you. Thus, you can always rely on us to write genuine and high-standard content for your essay assignments.
When you trust to place an order with Homework Ace Tutors, here is what happens: