How would you break the null variable down to figure out the answer? -4b3c-bb3b-15e649c160e3QuestionSuppose the null hypothesis, Ho, is a surgical procedure is successful at least 80% of the time.And the alternative hypothesis, Ha, states the doctors' claim, which is a surgical procedure is successful less than 80% ofthe time.What is the Type II error in this scenario?Correct! You nailed it.The doctors conclude that the surgical procedure is successful less than 80% of the time when, in fact, the surgicalprocedure is successful at least 80% of the time.The doctors conclude that the surgical procedure is successful less than 80% of the time when, in fact, the surgicalprocedure is successful less than 80% of the time.The doctors do not conclude that the surgical procedure is successful less than 80% of the time when, in fact, thesurgical procedure is successful less than 80% of the time.The doctors do not conclude that the surgical procedure is successful less than 80% of the time when, in fact, thesurgical procedure is successful at least 80% of the time.Answer ExplanationCorrect answer:The doctors do not conclude that the surgical procedure is successful less than 80% of the time when, in fact, thesurgical procedure is successful less than 80% of the time.A Type Il error is the decision not to reject the null hypothesis when, in fact, it is false. In this case, the Type II error is whenthe doctors do not conclude that the surgical procedure is successful less than 80% of the time when, in fact, the surgicalprocedure is successful less than 80% of the time.FEEDBACKCONTINUE

Given Information: Null Hypothesis H0:p≥0.80 i.e., a surgical procedure is successful at least 80%…

Answered: Question Suppose the null hypothesis,…

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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A researcher hypothesizes that Drug A is more effective than Drug B. In conducting an analysis to test this hypothesis, how should the null hypothesis be stated? a. H0: μDrug A = μDrug B b. H0: μDrug A > μDrug B c. H0: μDrug A ≠ μDrug B d. H0: μDrug A < μDrug B
You watch people exiting Dodgers stadium after a game and you write down the number of males and the number of females that exit the stadium past you during the 20 minutes that you spend watching. You assumed that there would be a perfectly equal number of males and females attending a Dodgers game, but you look at the number of males and females that you actually counted, and you see if you still think that is actually true. What kind of hypothesis test would allow you to do this? a. One-Factor, Independent-Measures ANOVA b. Two-Factor ANOVA c. Correlation/Regression d. Chi-Square Goodness of Fit
2. A producer of pharmaceutical claims that it is 90% effective in relieving hypersensitivity for a period of 8 hours. In a test of 200 individuals who had hypersensitivity, the medicine provided relief for 160 individuals.a. What should be the good hypotheses for this problem? i. Null Hypothesis: The medicine is 90% effective. ii. Null Hypothesis: The medicine is not 90% effective. iii. Alternative Hypothesis: The medicine is less than 90% effective. iv. Alternative Hypothesis: The medicine is greater than 90% effective. v. Both i and iii vi. Both i and iv vii. Both ii and iii viii. Both ii and iv ix. None of the above. b. What is the critical region at 1% level? i. z < -2.33 ii. t < - 1.282 iii. z > 2.33 iv. t > 1.282 v. None of the above. c. What is the t-value/z-score? i. t = 4.71 ii. z = -4.71 iii. t = 2.82 iv. z = -3.21 v. None of the above. d. Decide whether the manufacturer’s claim is legitimate or not at 1% level.…
Answer A, B1, and B2: A. 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. Conduct 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. B. Researchers interested in lead exposure due to car exhaust sampled the blood of 52 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a primarily urban environment. The blood samples of these officers had an average lead concentration of 124.32 µg/l and a SD of 37.74 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level…
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b. Is the model of any use in predicting y? Test the null hypothesis H0: β1=β2=...=β5=0 against the alternative hypothesis: At least one of the parameters β1, β2, ... , β5 is nonzero. Use α=0.10. The test statistic is enter your response here.
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In winter of a country, it rains 45% of the days and shine 55% of the days. Mr. X has abarometer which wrongly predicts 5% of the time in rainy days and 10% on shiny days.Mr. X does not carry umbrella if barometer predicts shine. On good shiny morning inwinter, his barometer predicts “shine” and he does not carry umbrella. What is theprobability that Mr. X will suffer from rain on that day.

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