Scenario: Terry Teacher suspects that kindergarten class sizes in Alameda county are larger thanaverage. According to the California Department of Education, the average kindergarten class size inCalifornia is 21.9. For a random sample of 36 Alameda County kindergarten classes, the averageclass size was 23 with a standard deviation of two. Run a test to assess Terry Teacher's hypothesis atthe a=.05 level.Question: In symbols, the null hypothesis for this test would be:u 7 21.9H = 21.9H # 23H = 23

Answered: Image /qna-images/answer/9548bc77-8db1-496a-bd2c-992e6b48393a.jpg

Answered: Scenario: Terry Teacher suspects that…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.8 auto accidents per day with a standard deviation of 0.06. The actuaries of the company claim that the standard deviation of the number of accidents per day is no longer equal to 0.06. Suppose that we want to carry out a hypothesis test to see if there is support for the actuaries' claim. State the null hypothesis H, and the alternative hypothesis H₁ that we would use for this test. Ho H₁: H₁: μ ☑ р <0 □□ 0 S ロ=ロ x □<□ □≠□ ค
A golf analyst claims that the standard deviation of the 18-hole scores for a golfer is less than 2.9 strokes. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null hypothesis expressed in words is, "the standard deviation of the 18-hole scores for a golfer is at least 2.9 strokes." The null hypothesis is expressed symbolically as, "H0: σ≥2.9." B. The null hypothesis expressed in words is, "the standard deviation of the 18-hole scores for a golfer is not 2.9 strokes." The null hypothesis is expressed symbolically as, "H0: σ≠2.9." C. The null hypothesis expressed in words is, "the standard deviation of the 18-hole scores for a golfer is less than 2.9 strokes." The null hypothesis is expressed symbolically as, "H0: σ<2.9." D. The null hypothesis expressed in…
Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
Need answer to question 4.
The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.8 auto accidents per day with a standard deviation of 0.04. The actuaries of the company claim that the standard deviation of the number of accidents per day is no longer equal to 0.04. Suppose that we want to carry out a hypothesis test to see if there is support for the actuaries' claim. State the null hypothesis H, and the alternative hypothesis H,1 that we would use for this test. Ho H: 0 O
A high school counselor asks a college-bound student to complete a Readiness to Leave Home questionnaire. Among high schoolers, the questionnaire has a mean of 38.61 and a standard deviation of 9.05. The student earns a raw score of 21. Type your response to the following questions directly in Moodle: What is the student’s z score? (you do not need to show the calculation) In 1-2 sentences, what does the Z score tell us about the student's readiness to leave home? (show that you know the definition of a Z score & can apply it to this example) How would you recommend that the guidance counselor work with the student? (1 sentence)
Please answer within 30min thanks.Answer Letter D Eonly choices provided in pic.
An educational researcher claims that the average GPA of graduate students at FIU is less than 3.5 . To test his claim he collected data on 81 graduate students . The sample mean GPA was 3.25 with a standard deviation of 0.3 . What is the conclusion ? Group of answer choices A. Reject the null hypothesis B. Type I error C. Fail to reject the null hypothesis D. Reject the alternative hypothesis
A golf analyst claims that the standard deviation of the 18-hole scores for a golfer is at most 3.1 strokes. State Ho and H, in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. ..... State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null hypothesis expressed in words is, "the standard deviation of the 18-hole scores for a golfer is not 3.1 strokes." The null hypothesis is expressed symbolically as, "Ho: σ7 3.1." B. The null hypothesis expressed in words is, "the standard deviation of the 18-hole scores for a golfer is at least 3.1 strokes." The null hypothesis is expressed symbolically as, "Ho: o2 3.1." C. The null hypothesis expressed in words is, "the standard deviation of the 18-hole scores for a golfer is at most 3.1 strokes." The null hypothesis is expressed symbolically as, "Ho: os3.1." D. The null hypothesis expressed in words is, "the…
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Medicare would like to test the hypothesis that the average monthly rate for one- bedroom assisted-living facility is equal to $3,300. A random sample of 12 assisted- living facilities had an average rate of $3,690 per month. The standard deviation for this sample was $530. Medicare would like to set a = 0.05. Which one of the following statements is true? a. Because the p-value is less than alpha, we fail to reject the null hypothesis and conclude that the average monthly rate for an assisted- living facility is not equal to $3,300. b. Because the p-value is less than alpha, we reject the null hypothesis and conclude that the average monthly rate for an assisted-living facility is not equal to $3,300. O c. Because the p-value is greater than alpha, we fail to reject the null hypothesis and conclude that the average monthly rate for an assisted- living facility is equal to $3,300.
Scenario: Terry Teacher suspects that kindergarten class sizes in Alameda county are larger than average. According to the California Department of Education, the average kindergarten class size in California is 21.9. For a random sample of 36 Alameda County kindergarten classes, the average class size was 23 with a standard deviation of two. Run a test to assess Terry Teacher's hypothesis at the a=.05 level. Question: Given the p-value you calculated, which of the following is a correct conclusion for this test? (select all that apply) There is no support for the alternative hypothesis Because p a , we fail to reject the null hypothesis There is support for the alternative hypothesis

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