Question 1: Give the hypotheses. A statistician wants to compare the average grade between students thatenroll with a support course in a statistics class versus those that do not.A sample of 37 students enrolled in a support course has an averagegrade of 84% with a standard deviation of 20%. A sample of 100students not enrolled in a support course have an average grade of 79%with a standard deviation of 27%. Both grade distributions are normallydistributed. Take population 1 as students who enroll in a supportcourse. At the 5% significance level determine if the average grade ofstudents in a support course is higher than those that do not enroll in asupport course.Give the hypotheses.Null: There is no difference in the average grades between the students thattake the support course and those that do not.Alternative: The average grade of those with the support course is higher.O Null: There is no difference in the average grades between the students thattake the support course and those that do not.Alternative: The average grade of those that do not take a support course ishigher.Null: There is no difference in the average grades between the students thattake the support course and those that do not.Alternative: The average grades are not equal.

Test is that whether the average grade of students in a support course is higher than those that do…

Answered: course. At the 5% significance level…

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 12 Suppose we are interested in whether travelers departing to Bali have spent researching potential health risks. Let the population proportion be denoted by p and assume we are interested in testing whether there is evidence that more than 40% of travelers have researched potential health risks. Which of the following represents the correct set of hypotheses for this 1-tailed test? O a. Ho: 0 = 0.4 H: р 0.4 O d. Ho: p = 0.4 H1: p> 0.4
Questions 1 and 2: Set up the Null and Alternative hypotheses to test the following claims: 1. A health insurance company wants to determine if less than 25% of U.S. residents have been to a hospital emergency room within the past year. State the null and alternative hypotheses. H0: HA: 2. A company makes canned clam chowder (a delicious New England tradition). On the label, the company claims that the chowder contains (on average) 3.5 grams of Total Fat per serving. A consumer group would like to test this claim is true. State the null and alternative hypotheses that you would use to test if the mean amount of Total Fat per serving differs from 3.5 grams: H0: HA:
QUESTION 4 Assume you are conducting a hypothesis test to determine if pesticides cause cancer in rural areas. The hypotheses are: The null hypothesis is no cancer. The alternate hypothesis is cancer. Select if the result for Box B is correct, a Type I error, a Type Il error or if there is insufficient information to make the decision. *****Read the labels very carefully. Но: по сапсer Ha: cancer Reality: Reality: Null is true Alternate is true (i.e. no cancer) (i.e. cancer) Decision: Accept the null hypothesis (i.e. test is negative for cancer) A B
Question 5
QUESTION 4 For the following hypothesis test: Ho 23 HA 23 0.025 with n- 25, s-8, and - 20, state (a). the decision rule in terms of the critical value of the test statistic (b). the calculated alue of the test statistic (c). the conclusion T T T Arial v 3 (12pt) - T-E - E- - O O D
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Question 5
Solve question a,b and c please
Question 10: give the conclusion.
facing up. The student rolls the cube 100 times and lands with 6 facing up 20 times. The P-value for the test of the hypotheses, Hop-0.17 and H p>0.17, is 0.19. What is the correct conclusion given a=0.05? O Because the P-value is less than a=0.05, the student should reject Ho. O Because the P-value is less than a=0.05, the student should reject Ho. O Because the P-value is greater than a=0.05, the student should reject Ho: O Because the P-value is greater than a=0.05, the student should fail to reject Ho. Save and Exit Next Submit Mark this and return 23 $ & 3 4. 5 6. 7 8. y d f h k 60
QUESTION 4 Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Use the correct symbol (u. p. a) for the indicated parameter. A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p. is less than 2 in every one thousand. Ho:p> 0.002 H₁; p ≤ 0.002 Ho: p 0.002 Ho: P = 0.002 Hj: p < 0.002
The first picture is the question and the second is the ones that need help with. Just B,C,DThanks!

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course. At the 5% significance level determine if the average grade of students in a support course is higher than those that do not enroll in support course. Give the hypotheses.