The following variable (X) represents the number of coupons used over a 6 month period by...
The following variable (X) represents the number of coupons used over a 6 month period by a sample of 11 shoppers:
81, 64, 70, 68, 70, 52, 62, 70, 64, 77, 59
Use this data to compute:
The mean, the median, the mode, the range, the variance, the standard deviation, the 75th percentile, the sum of the values of (X), and the sum of the squared deviations of each value of (X) from the mean. In addition, please explain what information is provided to us about this variable by your answers to: (1) the sample mean and (2) the sample standard deviation.
Homework Answers
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The following variable (X) represents the number of coupons used
over a 6 month period by...
The following scores represent the final examination grades for an elementary statistics course:
The following scores represent the final examination grades for an elementary statistics course: 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Calculate: Stem and leaf Relative frequency histogram Cumulative frequency Sample Mean Sample Median Mode Variance Standard deviation
02 The following scores represent the final examination grades for an elementary statistics course: 23 60...
02 The following scores represent the final examination grades for an elementary statistics course: 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Calculate: . Stem and leaf ....
A section of an Introduction to Psychology class took an exam under a set of unusual...
A section of an Introduction to Psychology class took an exam under a set of unusual circumstances. The class took the exam in the usual classroom, but heavy construction noise was present throughout the exam. For all previous exams using the same format and same questions, student scores were normally distributed with a mean of µ = 75.00 and a population standard deviation (sigma) = 10.50. To understand the possible effects of the construction noise, you have been asked to...
Consider the below matrixA, which you can copy and paste directly into Matlab.
Problem #1: Consider the below matrix A, which you can copy and paste directly into Matlab. The matrix contains 3 columns. The first column consists of Test #1 marks, the second column is Test # 2 marks, and the third column is final exam marks for a large linear algebra course. Each row represents a particular student.A = [36 45 75 81 59 73 77 73 73 65 72 78 65 55 83 73 57 78 84 31 60 83...
Ethics and the Conduct MS 1023 Fall 2019 sec %Statistics for Business an C QUESTION 1...
Ethics and the Conduct MS 1023 Fall 2019 sec %Statistics for Business an C QUESTION 1 in The Int Q The Ablene Parado F x CTheoger ca x x webassign.net/web/Student/Assignment-Responses/last?dep-21840020 1.-/4 points ASWSBE13 3.E.005.MI My Consider a sample with data values of 26, 25, 20, 15, 31, 33, 29, and 25. Compute the 20th, 25th, 65th, and 75th percentiles. 20th percentile 25th percentile 65th percentile 75th percentile Need Help? Tek to a Tuter Read Master ASWSBE13 3.E.006.MI 2. -3 points...
Question 4 15 pts Following are heights, in inches, for a sample of college basketball players....
Question 4 15 pts Following are heights, in inches, for a sample of college basketball players. 84 88 78 85 70 75 72 86 78 81 86 78 81 72 73 76 77 87 88 60 a. Find the mean, median and mode. (3pts) b. Use the mean, median and mode to describe the shape of the distribution. (4pts) c. Find the standard deviation and variance of the heights of the basketball players. (4pts) d. Find the percentile for 85in,...
Use the accompanying data set on the pulse rates (in beats per minute) of males to...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.871.8 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.212.2...
The following are the entrance exam scores (percentages) of 15 randomly chosen students: 65 81 55...
The following are the entrance exam scores (percentages) of 15
randomly chosen students:
65 81 55 90 85
95 77 62 89 83
74 83 62 68 83
a. Calculate the range of the scores.
b. Determine the first, second and third quartiles.
c. Calculate the percentile rank of a person who has a score of
62%.
d. What is the score of a person who is in the 80th percentile
of the data?
e. Calculate the mean, median, and...
Question 1 15 pts Test scores for a class of 40 students are listed below: 25...
Question 1 15 pts Test scores for a class of 40 students are listed below: 25 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98 a) The mean of the sample data is b) The median of the sample data is c) The standard deviation of the sample data is...
please explain answer Listed below are pulse rates (beats per minute) from samples of adult males...
please explain answer
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: 72 61 58 77 81 58 53 70 59 69 52 82 64 59 93 Female: 66 70 90 91 69 62 93 79 88 68 65 92 71 92 87 Find the means The...
02 The following scores represent the final examination grades for an elementary statistics course: 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Calculate: . Stem and leaf ....
Ethics and the Conduct MS 1023 Fall 2019 sec %Statistics for Business an C QUESTION 1 in The Int Q The Ablene Parado F x CTheoger ca x x webassign.net/web/Student/Assignment-Responses/last?dep-21840020 1.-/4 points ASWSBE13 3.E.005.MI My Consider a sample with data values of 26, 25, 20, 15, 31, 33, 29, and 25. Compute the 20th, 25th, 65th, and 75th percentiles. 20th percentile 25th percentile 65th percentile 75th percentile Need Help? Tek to a Tuter Read Master ASWSBE13 3.E.006.MI 2. -3 points...
Question 4 15 pts Following are heights, in inches, for a sample of college basketball players. 84 88 78 85 70 75 72 86 78 81 86 78 81 72 73 76 77 87 88 60 a. Find the mean, median and mode. (3pts) b. Use the mean, median and mode to describe the shape of the distribution. (4pts) c. Find the standard deviation and variance of the heights of the basketball players. (4pts) d. Find the percentile for 85in,...
The following are the entrance exam scores (percentages) of 15
randomly chosen students:
65 81 55 90 85
95 77 62 89 83
74 83 62 68 83
a. Calculate the range of the scores.
b. Determine the first, second and third quartiles.
c. Calculate the percentile rank of a person who has a score of
62%.
d. What is the score of a person who is in the 80th percentile
of the data?
e. Calculate the mean, median, and...
Question 1 15 pts Test scores for a class of 40 students are listed below: 25 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98 a) The mean of the sample data is b) The median of the sample data is c) The standard deviation of the sample data is...
please explain answer
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: 72 61 58 77 81 58 53 70 59 69 52 82 64 59 93 Female: 66 70 90 91 69 62 93 79 88 68 65 92 71 92 87 Find the means The...
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