A researcher wants to determine if the number of years of education for a parent correlates with the number of years of education for their child. The table shows the number of years of education of the parent and the number of years of education of their child for a random sample of 7.    Years of Education of Parent: 13, 9, 12, 10, 12, 10, 12 Years of Education of their Child: 15, 11, 10, 16, 17, 12, 17   Conduct a hypothesis test to determine if there is a significant linear correlation between the two variables. Use α = 0.05. If there is a significant linear correlation between the variables, determine the regression equation.  There is a significant correlation between the variables and the regression equation is y' = 5.333 + 0.777x  There is a significant correlation between the variables and the regression equation is y' = 0.777 + 5.333x  There is not a significant correlation between the variables, so the regression equation should not be determined.  There is a significant correlation between the variables and the regression equation is y' = 8.451 + 0.1923x

The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples. Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84 Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87 z-score for midterm: 1.857 z-score for final: 1.181 Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade? Select the correct answer below: A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual. B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual. C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more…

4. Find the mode of this data set: 3, 3, 4, 8, 5, 8, 1, 6, 7. OA. no mode OB. 3 O c. 5 OD. 3 and 8

Do certain car colors attract the attention of police more than others, so that they are more likely to get speeding tickets?  A few years ago a curious newspaper columnist tabulated the car color on a random sample of 120 speeding citations at the local courthouse.  Here are his results. Color Red White/Silver Gray/Black Other Number of speeding tickets 19 28 30 43   He then went to the state motor vehicle registry and obtained data on the distribution of car colors for all cars registered in his state: Color Red White/Silver Gray/Black Other Percentage of cars on highway 12% 20% 19% 49%   Do the data give evidence that certain color cars get more speeding citations (tickets) than you would expect?  Use ? = 0.05.

Which of the given data sets is less variable? а. 1,1,2,2,3,3,4,41,1,2,2,3,3,4,4 b. 1,1,1,1,8,8,8,81,1,1,1,8,8,8,8 C. 1,-1,2,-2,3,-3,4,-41,-1,2,-2,3,-3,4,-4 d. 1,1.5,2,2.5,3,3.5,4,4.51,1.5,2,2.5,3,3.5,4,4.5 е. 1,1,2,4,5,7,8,81,1,2,4,5,7,8,8 f. None g. 1,2,3,4,5,6,7,81,2,3,4,5,6,7,8 h. 1,2,2,3,3,3,4,4,4,41,2,2,3,3,3,4,4,4,4 i. 1,1,1,4,5,8,8,81,1,1,4,5,8,8,8 j. -1,-0.75,-0.5,-0.25,0,0,0,0.25,0.5,0.75,1

The 2008 general social survey asked a nationally representative sample of 1324 adult americans to report how many hours of television they watch in a typical day. The resulting data are reported in the following table counts. Median number of hours of tv watching per day

Treat the dataset as your bag of peanut M&M’s (a simple random sample). Count the number of orange M&M’s and the total number of M&M’s in your bag. Then determine the proportion of your M&M’s that are orange. Number of orange M&M’s: 13 Total number of M&M’s: 65 Proportion of orange M&M’s: 0.2   Question below is according to this.

1. Identify a1 of this data: 1, 2, 3, 4,4, 5 ,6, 6 ,7,8,9, 1o. A. 3 C. 4 B. 3.25 D. 4. 25 9. Vhat is the mean of this data? 3x10, 4x105 , 5x1of GXI05, 7x105. A. 3,5 X10 C 6.5 X105 B. 4x105 D. 7 X105 10. f x is the qverage of 2 & 3, y is the average of x *2, z is the qverage of x 95, find +the average of x,y & z. A. 9. 375 4. 6875 В. 3. 125 0. 3.75

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About 3% of the population has a particular genetic mutation. 900 people are randomly selected.Find the mean for the number of people with the genetic mutation in such groups of 900.