The manager of a computer software company wishes to study the number of hours per week senior executives by type of industryspend at their desktop computers. The manager selected a sample of five executives from each of three industries. At the 0.05significance level, can she conclude there is a difference in the mean number of hours spent per week by industry?Banking Retail Insurance1210Rectangular Snip1081061288101010Click here for the Excel Data File1. State the null hypothesis.HO 1u3H1 Treatment meansall the same. 2. What is the decision rule? (Round your answer to 2 decimal places.)F 0.05>Recta3. Complete the ANOVA table. (Round your SS, MS, and Fvalues to 2 decimal places.)Analysis of VarianceSourceSSdfMSFTreatmentsError4. State your decision regarding the null hypothesis.Decision:Но

1. According to the provided data, the null and the alternative hypotheses can be stated as:

Answered: The manager of a computer software…

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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Identify the mean, median and mode based from the data below.
Secretary of State Roxana Tillerson is worried about malpractice at the 4 processing centers for Green Cards in the country. Green Card applications are given a grade g on a scale 0-100. They are assigned randomly to different centers and thus Tillerson expects all centers to have similar mean scores. She collects the data in the table. #applications 9360 67.27 15.29 1 9870 66.74 14.64 7020 66.94 15.14 3 5040 67.02 14.84 4 rows x 3 columns At this point she just wants to decide whether or not to initiate a deeper investigation into malpractice at all sites. Does she have sufficient evidence for this, at 6% significance? SSTT number (rtol=0.01, atol=0.0001) SSE number (rtol=0.01, atol=0.0001) F. number (rtol=0.01, atol=0.0001) P-val number (rtol=0.01, atol=0.0001) O (a) No, she cannot make a conclusion O (b) Yes, she has enough evidence Select the key assumptions in the test you used. O (a) The populations are independent and therefore their covariances are zero. O (b) All sample sizes…
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A sample of 25 freshmen at a major university completed a survey that measured their degree of racial prejudice (the higher the score, the greater the prejudice) Compute the median and mean for these data? 10 43 30 30 45 40 12 40 42 35 45 25 10 33 50 42 32 38 11 47 22 26 37 38 10
The following refer to the following data set: 52.2 20.1 38.2 16.4 52.2 44.7 35.6 26.9 52.2 31.2 What is the arithmetic mean of this data set? mean = What is the median of this data set? median = What is the mode of this data set? mode =
10. Determine if the number of absences incurred by a student is related to his or her final test score in a Statistics class. The data obtained in a study is from seven randomly selected students. No. of Absences, x 6. 15 9. 12 8. Final grade, y 82 86 43 74 58 90 78 41 16.4
4. In an effort to estimate the size of elk herds wintering in Rocky Mountain National Park, the rangers used a small airplane to spot count groups of elk in the park. They found 15 groups of elk and recorded the size of each group as: 21 15 19 16 18 17 17 20 25 7 7 16 10 16 18 12 Compute the mean, the median and the mode of the data.
Some Woodside customers were asked the age of their houses. The table summarizes the results. Age of Home Number of Midpoint (years) Customers 0-8 17 9-17 10 18 26 27 35 4. What are the mean and median of the age of houses? O mean 14 and median 13 O mean 12 and median 22 O mean 13 and median 13 O mean 12 and median 13
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