A researcher is interested in determining if the weekend activities people engage in to alleviate stressare uniformly distributed among office workers. They collect data from a sample of 100 office workersto analyze. Using a significance level of a = 0.05, the researcher wants to establish whether there is anypreference among these activities or if they are equally preferred.●●●●●●ACTIVITYStaying at homeHikingYogaAttend MassShoppingNUMBER OF OFFICE WORKERS371681029Solve the problem using Microsoft Excel with installed Megastat add-in.State what type of nonparametric test is to be used and explain why you chose suchState the null hypothesis.Show how data was placed in Excel.Show your results with the p-value boxed in red.Show the rankings of your data (if applicable).Make a decision and give a conclusion.

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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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The table below summarizes data from a survey of a sample of women. Using a 0.01 significance level, and assuming that the sample sizes of 900 men and 400 women are predetermined, test the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of women? Gender of Interviewer Man Woman Women who agree 625 330 Women who disagree 275 70 Compute the test statistic, rounding to three decimal places. Find the critical value(s). (Round to three decimal places) What is the conclusion based on the hypothesis test?
You may need to use the appropriate technology to answer this question. The better-selling candies are often high in calories. Assume that the following data show the calorie content from samples of M&M's, Kit Kat, and Milky Way candies. M&M's Kit Kat Milky Way 250 245 200 210 205 208 220 235 202 240 215 190 250 230 180 Test for significant differences among the calorie content of these three candies. State the null and alternative hypotheses. H0: All populations of calories are identical.Ha: Not all populations of calories are identical.H0: Not all populations of calories are identical.Ha: All populations of calories are identical. H0: MedianMM ≠ MedianKK ≠ MedianMWHa: MedianMM = MedianKK = MedianMWH0: MedianMM = MedianKK = MedianMWHa: MedianMM > MedianKK > MedianMWH0: MedianMM = MedianKK = MedianMWHa: MedianMM ≠ MedianKK ≠ MedianMW Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer…
Course/Year 1. Brian, a college administrator, claimed that there was no difference in averages of students coming from three nearby schools A, B, and C. Use the following data to test his claim with a 1% significance level. Ex A-420 2x² 253 Ex B 340 SANOVA Table: 4 Source of Variation Between - column Within - column Total A A. Ho: B. a: 0.01 C. B C 3 _M₁ = M₁₂₁ = M²3 Sum of Squares 2.25 Compute for sum of squares D. Compute for degrees of freedom 84 88 88 E. Compute for mean sum of squares F. Compute for F-value 82 83 80 df 2 Ha: STUDENTS 89 82 89 Mean Sum of Squares 85 83 80 F-value Mr & Mr & M²₂ n₁ = √=n²₁₂₁ = 3 - N = 12 7 Critical Value / Tabular Value Decision
Investigation 3.2: Valence Differences Between R&B and Rap Genres (Paired)A music fan claims that R&B songs tend to have a more positive tone on average than do Rapsongs. The individual collected two independent random samples from the population of SpotifySongs. Fifteen R&B songs and another fifteen Rap songs were collected and their Valence wasrecorded. The music fan believed that pairing the song by their Danceability may provideadditional information. Danceability describes how suitable a track is for dancing based on acombination of musical elements including tempo, rhythm stability, beat strength, and overallregularity. A value of 0.0 is least danceable and 1 is most danceable. Thus, the individual pairedthe R&B song with the lowest danceability with the Rap song with the lowest danceability,followed by the second and second, third and third. She continued this process until the R&Bsong with the highest danceability was paired with the Rap song with the…
The table below summarizes data from a survey of a sample of women. Using a 0.05 significance level, and assuming that the sample sizes of 800 men and 400 women are predetermined, test the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of women? Gender of Interviewer Man Woman Women who agree 535 344 Women who disagree 265 56 Click here to view the chi-square distribution table. LOADING... Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: The proportions of agree/disagree responses are different for the subjects interviewed by men and the subjects interviewed by women. H1: The proportions are the same. B. H0: The proportions of agree/disagree…
You may need to use the appropriate technology to answer this question. The better-selling candies are often high in calories. Assume that the following data show the calorie content from samples of M&M's, Kit Kat, and Milky Way II. M&M's Kit Kat Milky Way II 250 245 200 210 205 208 230 215 202 220 225 190 250 240 180 Test for significant differences among the calorie content of these three candies. State the null and alternative hypotheses. O H,: Median MM * Mediank * Median ww KK H: Median MM = Mediangk = MedianMw "KK O Ho: Median MM = MedianKK H: Median MM * Median KK * MedianyW Median Mw O Ho: All populations of calories are identical. H: Not all populations of calories are identical. O Ho: Not all populations of calories are identical. H: All populations of calories are identical. O Ho: Median MM = Mediank = MedianMw H: Median MM > Mediankk > Median Mw Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three…
local cabinet shop wants to determine the effect of adhesive brands on thebonding of veneer to the side of cabinets. Four different brands of adhesive wereapplied to glue veneer to random samples of cabinet ends. The treatments wereidentical except for the brand of adhesive. Which of the following is thedependent variable in this study? A. brands of adhesive B. bonding veneer C. cabinet ends D. four different brands
Time Spent Studying and Social Media
5t. A magazine reports that women trust recommendations from a particular social networking site more than recommendations from any other social network platform. But does trust in this social networking site differ by gender? The following sample data show the number of women and men who stated in a recent sample that they trust recommendations made on this particular social networking site. Women Men Sample 150 170 Trust RecommendationsMade on the social networking site 111 102 (a) What is the point estimate of the proportion of women who trust recommendations made on this particular social networking site? (b) What is the point estimate of the proportion of men who trust recommendations made on this particular social networking site? (c) Provide a 95% confidence interval estimate of the difference between the proportion of women and men who trust recommendations made on this particular social networking site. (Round your answers to four decimal places.)
Answer j and k
The better-selling candies are often high in calories. Assume that the following data show the calorie content from samples of M&M's, Kit Kat, and Milky Way II. M&M's Kit Kat Milky Way II 240 235 200 210 205 208 220 245 202 250 215 190 240 230 180 Test for significant differences among the calorie content of these three candies. State the null and alternative hypotheses. O H: MedianMM - MedianK = Median Mw H: Median MM * MedianKK + MedianMw O Ho: MedianMM = MediankK = Median Mw H: Median MM > Median KK > MedianMw O H.: Not all populations of calories are identical. H: All populations of calories are identical. O Ho: All populations of calories are identical. H: Not all populations of calories are identical. O Ho: MedianMM * MedianKk + MedianMw 'MW H: MedianMM = Mediankk = MedianMw Find the value of the test statistic. (Round your answer to two decimal places.) 8.62 Find the p-value. (Round your answer to three decimal places.) p-value =.005 At a 0.05 level of significance, what is your…
A random sample of 13 men and 19 women in a college class reported their grade point averages (GPAS). A woman in the class says that she believes that college women tend to have higher GPAS than do college men. Does this sample support her claim? Histogram of HGPA Histogram al WGPA 13 20 25 10 as 125 Summary statistics for these data are: 2.898 0.583 Women 3.330 | 0.395 Men What is the test statistic? [Enter t score to 2 decimal places] * Your answer Create and interpret a 95% confidence interval. Enter the low value of confidence interval to four decimal places. Your answer Enter the high value of confidence interval to four decimal places. Your answer

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