Answered: Exhibit 13-12 SSTR = SSE = 900 nT= 18…

Exhibit 13-12 SSTR = SSE = 900 nT= 18 .22 736 Refer to Exhibit 13-12. The test statistic to test the null hypothesis equals .84 6.13 4.5 Ho: M1 M2 M3 Ha: At least one mean is different

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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11.2
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Do people walk faster in an airport when they are departing (getting on a plane) or after they have arrived (getting off a plane)? An interested passenger watched a random sample of people departing and a random sample of people arriving and measured the walking speed (in feet per minute) of each. A hypothesis test is to be performed to determine if the mean walking speed is different between departing and arriving passengers at an airport. Suppose the p-value is 0.14. What is an appropriate conclusion? Choose the correct answer below. O A. There is sufficient evidence at the 5% significance level to indicate that the mean walking speeds for arriving and departing passengers are the same. B. There is not sufficient evidence at the 5% significance level to indicate that the mean walking speeds for arriving and departing passengers are different. C. There is not sufficient evidence at the 5% significance level to indicate that the mean walking speeds for arriving and departing passengers…
Which of the following is a two-tailed test? O Ho: µ = 89, H1: u 84 O Ho: µ = 54, H1: u # 54
Use the following prompt to answer the MEDICINE questions. A nighttime cold medicine's label indicates the presence of 600 mg of acetaminophen in each fluid ounce of the drug. The FDA randomly selects 75 1-ounce samples and finds the mean content is 593 mg with a standard deviation of 22 mg. Is there evidence that the label is incorrect? Use a= .10. Question 2 MEDICINE Select the appropriate null and alternative hypothesis. O Ho: H₁600 HA: H1600 O Ho: M₁ = 600 HA: H₁ = 600 O Ho: H₁ = 600 HA: H₁>600 Question 3 MEDICINE Calculate the test statistic for this hypothesis test. Question 4 MEDICINE Select the appropriate critical value(s). O +1.645 O +1.282 O 1.96 O 1.645 Question 5 MEDICINE What is the conclusion for this hypothesis test?
A researcher is testing a hypothesis of a single mean. The critical t value for a = .05 and a one-tailed test is 2.0639. The observed t value from sample data is 1.742. The decision made by the researcher based on this information is to the null hypothesis. reject not reject redefine change the alternate hypothesis into restate
Assume the average amount of days a patient spends in hospital is believed to be 24 days and a hospital claims that their experience suggests that the average is actually lower. They randomly selected and followed 33 patients and found that the mean number of days was 21.5 with a standard deviation of 7.8. What is the test statistic and your conclusion for α=0.05?A. Test statistic: 1.841 Conclusion: Reject the null hypothesisB. Test statistic: -1.841 Conclusion: Reject the null hypothesisC. Test statistic: 1.841 Conclusion: Not enough evidence to reject the null hypothesisD. Test statistic: -1.841 Conclusion: Not enough evidence to reject the null hypothesis
An electrician wants to know whether batteries made by two manufacturers have significantly different voltages. The voltage of 131 batteries from each manufacturer were measured. The population standard deviations of the voltage for each manufacturer are known. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Population standard deviat A 116 3 115 4 What type of hypothesis test should be performed? Right-tailed z-test v What is the test statistic? Ex: 0.12 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the a = 0.01 significance level? Select v
The coach of a very popular men’s basketball team claims that the average distance the fans travel to the campus to watch a game is 35 miles. The team members feel otherwise. A sample of 16 fans who travel to games was randomly selected and yielded a mean of M= 36 miles and s= 5 miles. Test the coach’s claim at the 5% (.05) level of significance. one-tailed or two-tailed test: State the hypotheses: df= tα or t value for the critical region = sM = t (test statistic)= Decision:
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