A Chicago-based firm has documents that must be quickly distributed between two delivery services, UPX and INTEX.The firm sends two copies of a report to a random sample of 16 of its district offices with one report carried by UPX and the otherreport carried by INTEX.Calculate the test statistic for a hypothesis test to show whether there is a significant difference between the two services at the 10significance level.(Round the answer to two decimal places.)1=16d = 2.33=1.7test statistic =

Answered: Image /qna-images/answer/80734963-d4f4-4ad8-b905-55e2c6ee6ed9.jpg

Answered: A Chicago-based firm has documents that…

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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Similar questions

A ski lift manager is interested in the average daily number of ski lift users. In previous years, fewer than 945 people, on average, have used the ski lift daily over the winter season. The manager suspects this average has increased in recent years. If the ski lift manager chooses to use the p-value approach for his hypothesis test, what does he need to compare the p-value to?
In a survey taken in 2020, 20 out of 50 women and 17 out of 45 men said that they felt our country was headed in the wrong direction regarding universal health care. Do these data provide sufficient evidence at the 0.01 level of significance to conclude that the proportions of women and men that feel out country is headed in the wrong direction regarding healthcare are equal? Use the P-Value Method of Testing. In your work space below, you will need to have -1. The null hypothesis, Ho 2. The alternative hypothesis, H1 3. The test statistic 4. The type of test(left, right, two-tailed) and the p-value 5. The decision to accept Ho or reject Ho
A high school is proud of its advanced chemistry class, in which its 16 students scored an average of 89.3 on the statewide exam, with s = 9. Test the same hypothesis at the .01 level (two-tailed), considering your decision with respect to the null hypothesis, what type of error (Type I or Type II) could you be making?
A snack food company produces a 454g bag of pretzels. Although the actual net weights deviate slightly and vary bag to bag, the company insists that the mean net weight of the bags to be 454g. Determine the null and alternate hypothesis as well as the classification of the hypothesis test as left, right, or two tailed.
: The Center for the Study of Violence wants to determine whether a conflict-resolution program in a particular high school alters aggressive behavior among its students. For 10 students, aggression was measured both before and after they participated in the conflict-resolution course. Students Before Participating After Participating 1 10 8 2 3 3 3 4 1 4 8 5 5 8 7 6 9 8 7 5 1 8 7 5 9 1 2 10 7 6 From performing a hypothesis test to determine if the aggression does not differ as a result of the participation in the program, what is the p-value?
The manufacturer of a new antidepressant claims that, among all people with depression who use the drug, the proportion p of people who find relief from depression is at least 65%. A random sample of 170 patients who use this new drug is selected, and 100 of them find relief from depression. Based on these data, can we reject the manufacturer's claim at the 0.1 level of significance? State the null hypothesis H0 and the alternative hypothesis H1 Find the z test value Find the p-value Can we reject the claim that the proportion of people who find relief from depression using the new antidepressant is at least 65%? Yes or No?
The manager of a fleet of automobiles is testing two different brands of radial tires and assigns one tire of each brand at random to the two rear wheels of eight cars and runs the cars until the tires wear out. The data, in kilometers, follow. Perform a hypothesis test at 0.05 level of significance. What is the Null and Alternative Hypthesis? Define the problem. Brand 1: 36,925 45,300 36,240 32,100 37,210 48,360 38,200 33,500Brand 2: 34,318 42,280 35,500 31,950 38,015 47,800 37,810 33,215
. The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. If you were conducting a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population, what would the null and alternative hypotheses be?
The American Automobile Association (AAA) claims that the proportion of dog owners who have allowed their dog to sit on their lap while they are driving is 0.17. You believe a different proportion of dog owners have driven while their dog is sitting on their lap. In a survey of a random sample of 318 dog owners, you find that the proportion in the sample who admit to having driven with a dog on their lap is 0.19. Use this information to conduct a hypothesis test at a significance (or alpha) level of 0.05. Given the P-value you determined to answer Question 9, should you reject or fail to reject the null hypothesis? Please explain. 2. Are the results of this hypothesis test statistically significant? Please explain why or why not.
The American Automobile Association (AAA) claims that the proportion of dog owners who have allowed their dog to sit on their lap while they are driving is 0.17. You believe a different proportion of dog owners have driven while their dog is sitting on their lap. In a survey of a random sample of 318 dog owners, you find that the proportion in the sample who admit to having driven with a dog on their lap is 0.19. Use this information to conduct a hypothesis test at a significance (or alpha) level of 0.05. What will the hypotheses be? Ho: Ha: What is the test statistic? Please calculate this value below. What is the P-value?
Under what circumstances is the t statistic used instead of the Z score for a hypothesis test?
A major credit card company is interested in the proportion of individuals who use a competitor’s credit card. Their null hypothesis is H0: p=0.65H0: p=0.65, and based on a sample they find a sample proportion of 0.70 and a pp-value of 0.053. Is there convincing statistical evidence at the 0.05 level of significance that the true proportion of individuals who use the competitor’s card is actually greater than 0.65 ? Yes, because the sample proportion 0.70 is greater than the hypothesized proportion 0.65. A Yes, because the pp-value 0.053 is greater than the significance level 0.05. B No, because the sample proportion 0.70 is greater than the hypothesized proportion 0.65. C No, since the sample proportion 0.70 is exactly 0.05 away from the hypothesized proportion 0.65. D No, because the pp-value 0.053 is greater than the significance level 0.05.

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