5.1.7 An engineering statistics class has 40 students; 60% areelectrical engineering majors, 10% are industrial engineeringmajors, and 30% are mechanical engineering majors. A sampleof four students is selected randomly without replacement fora project team. Let X and Y denote the number of industrialand mechanical engineering majors in the sample, respectively.Determine the following:a. fxy(x, y) b. fx(x)c. E(X)

The given data is as follows:60% are electrical engineering majors10% are industrial engineering…

Answered: 5.1.7 An engineering statistics class…

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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A researcher is investigating the physical characteristics that influence whether a person's face is judged as beautiful. The researcher selects a photograph of a woman and then creates two modifications of the photo by (1) moving the eyes slightly farther apart and (2) moving the eyes slightly closer together. The original photograph and the two modifications are then shown to a sample of n = 150 college students, and each student is asked to select the "most beautiful" of the three faces. The distribution of responses was as follows: Original Photo Eyes Moved Apart Eyes Moved Together 51 72 27 Do the data indicate any significant preferences among the three versions of the photograph? Test at the .05 Ievel of significance. Please show all work
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Qw.30.
You have been assigned to test the hypothesis that the average number of cars waiting in line for the drive-thru window during lunch hour differs between Chick-fil-A, Wendy's, and McDonald's. The following data show the number of cars in line during randomly selected times during the lunch hour at all three chains. Chick-fil-A(1) Wendy's(2) McDonald's(3) 7 7 6 10 8 7 11 5 6 8 3 7 9 2 9 Perform a one-way ANOVA using α = 0.05 to determine if a difference exists in the average number of cars waiting in line at the drive-thru during the lunch hour between these chains.
.14. The ranks of 10 students in two subjects A and B are as follows: A: 3 8. 4 7. 10 2 1 6 9 B: 6 4 6. 8. 2 3 10 5 7 Calculate the coefficient of rank correlation 219
Section F: In a random sample of 150 unemployed males, 81 of them stated that they were regular consumers of alcoholic beverages. Let p denote the true proportion of unemployed males that are regular consumers of alcoholic beverages.
Section F: In a random sample of 150 unemployed males, 81 of them stated that they were regular consumers of alcoholic beverages. Let p denote the true proportion of unemployed males that are regular consumers of alcoholic beverages.
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For the following pairs of data points (10, 100), (8, 120), (5, 200), (4, 200), (10, 90), (7, 110), and (6, 150), the value of bo is a. 186.9657 O b. 268.6957 С. 286.5769 O d. 168.6957
not a graded question. A question that says: The first and second exam grades X,Yfor a sample of ten students in two Statistics exams were as follows:
22 of 47 > Five strains of the Staphylococcus aureus bacteria were grown for 24 hours either at 35 degrees Celsius or at 43 degrees Celsius. The table gives the resulting bacterial counts for each condition: 24 hours at 35 degrees Celsius 24 hours at 43 degrees Celsius 66 98 71 67 93 42 102 31 62 77 Suppose we had plotted bacterial count at 35 degrees Celsius on the y axis instead of the x axis. How would this change affect the value of the correlation coefficient? The correlation would be the inverse of, or I over, the original value. The correlation coefficient would have the opposite sign. The correlation coefficient would be exactly the same. The correlation coefficient would have an entirely different magnitude.

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