A researcher believes that the mean earnings of top-paid actors, athletes and musicians are the same. Theearnings (in millions of dollars) for several randomly selected people from each category are shown in thetable below. It has been confirmed that the population variance for each group is equal and that earningsfollow normal distribution for top-pain actors, athletes and musicians. Use a 1% significance to test theclaim.JobActorActorActorActorActorActorActorActorActorActorActorActorActorActorAthleteAthleteAthleteAthleteAthleteAthleteAthleteAthleteAthleteAthleteMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianMusicianEarnings392832273232202330233720311733412843393441454548545143563543594333295523355056What is the factor variable? Top-Paid Job TypeWhat is the response variable? EarningsTest Statistic:P-Value:Decision Rule: Reject the NullDid Something Significant Happen? Significance HappenedThere isoto concludeAt least one true average earning is different between Top-Paid actors, athletes and musicians.

Denote μ1, μ2, and μ3 as the true mean earnings of to-paid actors, athletes, and musicians,…

Answered: A researcher believes that the mean…

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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An amusement park keeps track of the percentage of individuals with season passes according to age category. An independent tourist company would like to show that this distribution of age category for individuals buying season passes is different from what the amusement park claims. The tourist company randomly sampled 200 individuals entering the park with a season pass and recorded the number of individuals within each age category. Age Category Child (under 13 years old) Teen (13 to 19 years old) Adult (20 to 55 years old) Senior (56 years old and over) Number of Individuals 56 86 44 14 The tourist company will use the data to test the amusement park’s claim, which is reflected in the following null hypothesis. H0:pchild=0.23H0:pchild=0.23, pteen=0.45pteen=0.45, padult=0.20padult=0.20, and psenior=0.12psenior=0.12. What inference procedure will the company use to investigate whether or not the distribution of age category for individuals with season passes is…
In a sample of employees at a company here were the number of days they were out (sick/personal/vacation days) last year: 1, 6, 19, 35, 5, 9, 8, 12, 2, 15, 7, 7, 11, 15, 0, 25, 20, 15, 19, 5 Using Minitab, find the following sample statistics (take a screenshot of your output from Minitab and paste it here): Mean = median = Standard deviation =IQR=
Students in an experimental psychology class did research on depression as a sign of stress. A test was administered to a sample of 30 students. The scores are given. Complete parts (a) through (c) below. 32 54 11 15 35 21 OA. 158 34 15 55 51 11 35 2 1457 3 1234567 4123445566 511245666 34 33 46 OB. 11155 (a) Find the mean and median of the data. The mean is . (Round to three decimal places as needed.) 44 26 27 The median is .(Type an integer or a decimal.) (b) Draw a stem-and-leaf plot for the data using one row per stem. Which stem-and-leaf plot below shows the data? 2 112677 3 233445556 4 244666 5 1456 ... 21 42 38 OA. The distribution is symmetric. B. The distribution is skewed right (positively skewed). OC. The distribution is skewed left (negatively skewed). O D. The distribution is uniform. (c) Describe the shape of the distribution. Which description below best describes the shape of the distribution? 56 46 OC. 1112455668 2 14556 3 15 4 13457 5 223446667 46 27 33 35 22 44 36 0…
The average house has 14 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 14 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 15, 13, 16, 16, 17, 14, 14, 15, 13, 13, 15, 16, 15, 16 What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer v H: ?v Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean number of paintings that are in teachers' houses is not significantly more than 14 at a = 0.01, so there is insufficient evidence to conclude that…
Can someone answer g.) h.) and i.) please?
A survey was developed to estimate the average number of hours per week that adults spend exercising. Every third person entering a large fitness complex was surveyed, with a total of 2,500 people being surveyed. The data showed that the mean number of hours spent exercising was 3.2 hours per week. Which characteristic of the survey could create a bias in the results? The size of the sample The size of the sample The method of analyzing the data The method of analyzing the data The method of choosing the people who were surveyed The method of choosing the people who were surveyed The size of the population
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