Answer all pls.State the null (Ho) and alternative (Ha) for each of the following problems or situations. Determine the type of the alternative hypothesis formulated. 4. The packaging of a certain light bulb states the bulb will last for 8000 hours under normal use. Aconsumer suspects that the average life is lower than 8000 hours.5. A researcher hypothesizes that present average weight of male patients is not the same as theprevious years

The population mean is 8000 hours. This is one-sample test. The independent variable is weight of…

Answered: 4. The packaging of a certain light…

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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Question 4: give the conclusion.
It is clairmeu that the proportion of high school students in the United States who use computers for educational purposes is at most 72%. Suppose that we have reason to believe otherwise and wish to carry out a hypothesis test for this claim. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H, :0 H, :0 O
A medical researcher is studying the effects of a drug on blood pressure. Subjects in the study have their blood pressure taken at the beginning of the study. After being on the medication for 4 weeks, their blood pressure is taken again. The change in blood pressure is recorded and used in doing the hypothesis test. Change: Final Blood Pressure - Initial Blood Pressure The researcher wants to know if there is evidence that the drug affects blood pressure. At the end of 4 weeks, 31 subjects in the study had an average change in blood pressure of -2.7 with a standard deviation of 5.3. Find the p-value for the hypothesis test. Your answer should be rounded to 4 decimal places.
Explain the meaning of each of the following in the context of hypothesis testing. a. α b. β c. 1 − β
Whenever possible, the alternative hypothesis should O incorporate the researcher's hypothesis. O not include an equality. all of the above. be the complement to the null hypothesis.
Subject : Statestic
Question 10: give the conclusion.
Please answer the questions in the attatched photo. Thank You!
The Food and Drug Administration (FDA) is charged with protecting consumers from unsafe and ineffective drugs on the market. Suppose an effective drug is being tested for safety using the hypotheses: Ho: Drug is safe Ha: Drug is not safe a. Explain the consequence of type I error to the manufacturer. b. Explain the consequence of type II error to the manufacturer.
A marketing representative of XYZ product conducted a blind taste test. One hundred fifty regular drinkers of product A are given blind samples of both product A and product B. Product B is preferred by 50% of product A drinkers who participated in the blind taste test. Write the alternative hypothesis. a. p=0.50 O b. p#0.50 O c. p=150 O d. p#150
Write the null and alternative hypothesis statement of each number. The answer is already on the blanks for reference because some of the alternative hypothesis were wrong.

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4. The packaging of a certain light bulb states the bulb will last for 8000 hours under normal use. A consumer suspects that the average life is lower than 8000 hours. 5. A researcher hypothesizes that present average weight of male patients is not the same as the previous years