Question 9: give the hypotheses. A statistician was getting his car serviced at a dealership. Hewondered if the average service cost for females was higher than formales. A random sample of 110 women had an average service costof $240 with a standard deviation of $20. A random sample of 120men had an average service cost of $180 with a standard deviation of$100. Define the first population as men and the second populationas women. Using a 5% significance level, determine if the averageservice cost for women is higher than men.Give the hypotheses.O Null: There is no average difference in what men and women pay forservice costs at a dealership.Alternative: Women pay an average service cost higher than men.Null: There is no average difference in what men and women pay forservice costs at a dealership.Alternative: Men pay an average service cost higher than women.O Null: There is no average difference in what men and women pay forservice costs at a dealership.Alternative: The average service cost for men and women is not equal.

Test is that whether the average service cost for women is higher than men.

Answered: give the hypotheses

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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Discussion 4: Null and Alternative Hypotheses Previous Next Describe how to write the null and alternative hypotheses based on a claim. Provide at least one example to clarify your explanation. *Read the majority of posts from your classmates and choose two to respond to (with a minimum of 3 sentences each). Your response should be well thought out and further the discussion. Start a New Thread
K For students who first enrolled in two-year public institutions in a recent semester, the proportion who earned a bachelor's degree within six years was 0.386. The president of a certain junior college believes that the proportion of students who enroll in her institution have a higher completion rate. (a) State the null and alternative hypotheses in words. (b) State the null and alternative hypotheses symbolically. (c) Explain what it would mean to make a Type I error. (d) Explain what it would mean to make a Type Il error. OB. Among students who first enroll in two-year public institutions, the completion rate is 0.386. C. Among students who enroll at the certain junior college, the completion rate is 0.386. O D. Among students who enroll at the certain junior college, the completion rate is less than 0.386. State the alternative hypothesis in words. Choose the correct answer below. A. Among students who enroll at the certain junior college, the completion rate is greater than…
Solve 6 a, b,c,d and e please
if any, can be reached from the given hypotheses and justify your answer. All flowers are red or purple. Pansies are flowers. Pansies are not purple.
A sports enthusiast would like to determine if the average number of penalty minutes per game for teams in the National Hockey League is greater than 12 minutes. A sample of 30 games was taken, and the number of penalty minutes in each game was recorded. Select the appropriate hypotheses to be tested. Ho:μ=12Ho:μ=12Ha:μ>12Ha:μ>12 Ho:μ=12Ho:μ=12Ha:μ≠12Ha:μ≠12 Ho:¯y=12Ho:y¯=12Ha:¯y≠12Ha:y¯≠12 Ho:¯y=12Ho:y¯=12Ha:¯y>12
Question 3Workers at a private business was given a grade (A, B, C) based on their yearly performance. The data was recorded along with the department they belong. The results obtained using MINITAB are shown below: See table attached a) Carefully define the null and alternative hypotheses of the ?2 test of the above table. b) Find the missing values ‘*’, ‘**’, ‘***’ ??, ??? c) What is the conclusion of this test? Give reasons for your answer.
Let’s say your grandfather is 72 years old and your question is “Are my classmates’ grandfathers, on average, older than mine is”? What would be the null and alternative hypotheses in this scenario? Group of answer choices H0 : The population average age is less than 72. Ha : The population average age is greater than or equal to 72. The population average age is greater than 72. Ha : The population average age is less than 72. H0 : The population average age is equal to 72. Ha : The population average age is less than 72. H0 : The population average age is equal to 72. Ha : The population average age is greater than 72.
Let’s assume the average income for all majors in the School of Engineering is $80,000. However, the chair of the Computer Science department thinks their students earn more than that. Please choose the appropriate null and alternative hypotheses if the chair wanted to test this belief. a. H0: u <=80,000 Ha: u > 80,000 b. H0: u= 80000 Ha: u not= 80000 c. H0: u >80000 Ha: u < 80000 d. H0: u >80000 Ha: < 80000 e. None of the above.
The first picture is the question and the second is the ones that need help with. Just B,C,DThanks!
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
A. State the null and alternative hypotheses of the following situations. 1. A nurses union claims that the average monthly salary for fresh graduate nurses in the region is 20,000, but some associations believe this is not true. Null hypotheses: Alternative hypotheses:
question(13): The researcher decided to conduct the study again and recruited an additional 10 children from the full time kindergarden and an additional from the part time kindergarden, This time they matched the children in full time kindergarden and partime kindergarden on SES, gender, age, and vocabulary score .They based their hypotheses on the finding from a previous study and wanted to see if full time kinder garden would have better short term memory recall compared to children who attended partime kindergarden. Researchers read a list of 20 words ,then waited 2 minrderdenutes while the kids were having a snack, then they were asked to tell them how many words they remember. .Those who remember a word got a score of 1. A summary of the results is given below fulltime kindergarden: 15 9 10 8 11 7 14 12 11 13 partime kindergarden : 10 7 9 8 12 6 8 10 7 9 test the hypotheses…

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