The alternate hypothesis is: GenderBack Pain Back Pain No TotalYesFemale283563Male181937Total4654100

Answered: Image /qna-images/answer/1d8a6224-d80c-4b53-ab49-4a50beb90350.jpg

Answered: Gender Back Pain Back Pain No Total Yes…

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 presidential candidate claims that the proportion of college students who are registered to vote in the upcoming election is at least 64%. Suppose that we want to sample a number of college students and carry out a hypothesis test to see if this daim may be refuted. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H: 0 H;: 0 A OSO D=0
A student majoring in Management who has passed the Business Statistics course suspects that the average price of lunch at the canteen has increased during the pandemic. Before the pandemic, the price for lunch he paid was $21, $22, $22.50, $23, $23.50. After the pandemic, he paid $25, $25.50, $30, $27, and $26.50. a) Perform a hypothesis test analysis to find out whether there has been an average increase in the price of lunch (Use six Hypothesis Testing Steps) ! b) Interpret (and explain) the results of point a above!
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.
Suppose that in a random selection of 100 colored candies, 23% of them are blue. The candy company claims that the percentage of blue candies is equal to 25%. Use a 0.05 significance level to test that claim. Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho:p=0.25 H1:p>0.25 О В. Но: р#0.25 H1:p=0.25 Ос. Но р-0.25 H1:p<0.25 O D. Ho: p= 0.25 H1:p#0.25 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.)
The zombie apocalypse has broken out! It’s like an episode of the Walking Dead out there! You want to determine if the individuals roaming the streets, looking for brains to eat, are actual zombies. What would be your Type II error, given the following hypotheses. H0: They are not zombies! H1: They are zombies! Group of answer choices A.You find they are not zombies, but they actually are B. You find they are zombies, but they actually are not. C. You find that they are zombies, and in fact, they are D. You accidentally sampled Walking Dead extras, not real zombies
I. M. Schurr claims that students enjoy online classes more than professors. In order to test his claim, Schurr takes a sample of 60 students and determines 80% of the students enjoy online classes. For a sample of 40 professors, Schurr finds that 55% of the professors enjoy online classes. Do the data support Schurr’s claim that students enjoy online classes more than professors? a. State the null and alternative hypothesis that would be used to test whether students enjoy online classes more than professors.b. What is the appropriate test statistic?c. Determine the critical value(s) for this test using a 1% significance level.d. Calculate the value of the test statistic.e. What is your decision and conclusion?
The proportion of the population in favor of a particular law was about 66%. It is believed that the current proportion of the population in favor of the law has decreased. To assess this, you collect a sample of n=340 people and 197 indicate being in favor of the law. We wish to test the claim that the proportion of the population in favor of the law has decreased. Symbolically, the claim would be expressed as the alternative hypothesis: Ha:p
A drug company is currently selling an allergy medication that gives relief to 75% of the people who use it. Now the company's scientists want to see if their new version of the drug works even better. a.)What's their null hypothesis? b.)What's the alternative hypothesis? c.)Check the conditions and assumptions for inference and name the test. 3 e d BIUA ALEX, 12pt $ 4 r f V G % 5 t g b A 6 y h C & 7 O U j * 8 m i k 9 Paragraph alt O 4 1 ) O JO 5 P MDI ctri ? 1 { [ F backspa
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 health care researcher would like to answer the following research question: On average, are for-profit nursing homes larger (based on total number of beds) than facilities of another type (non-profit and governmental)? Compose a null and alternative hypothesis below: H1: H0:

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Gender Back Pain Back Pain No Total Yes Female 28 35 63 Male 18 19 37 Total 46 54 100