The administration at Warmfuzzy University gave a 7-item questionnaire to a representative sampleof seniors. Each item was a statement of intention (recommend WU to others, return aftergraduation, give money, and so forth). The seniors simply checked the items they intended to do. Aperson's score was the sum of the items checked. Arrange the scores into a simple frequencydistribution. Construct a histogram.1 2 1 3 0 4 0 5 1 2 4 0 5 0 1 3 0 1 3 6 1 2 1 2 4 7Arrange the scores into a simple frequency distribution and construct a histogram from the data. Youwill submit the pictures of this in Part 3.Calculate N and ΣΧDescribe the shape/skew.

N is the total number of observations.∑X is the summation of the total observations.

Answered: The administration at Warmfuzzy…

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 following are the scores of 15 students on an algebra test. Identify a cumulative frequency table for the data. 70,70,72,73,73,74,75,76,81,82,82,82,84,84,94.
Find a. the mean; b. the deviation from the mean for each data item; and c. the sum of the deviations in part (b) for the following group of data items. 157,158,163, 167, 170
You are given the following set of data. Its mean is 327. 255, 295, 345, 365, 375 If 25 is subtracted from each value, what will be the new mean? A. 270 O B. 327 OC. 315 O D. 302
Fifteen people were asked how many miles they commute to work each day. The data are summarized in the following table. Data (in Miles) Frequency 5 10 4 15 20 1 25 30 1 35 40 1 45 2 50 1 Find the median of the data: 10 Xmiles Find the mean of the data: 1.32727273 x miles Question Help: D Post to forum
After giving a statistics exam, professor Dang determined the following five-number summary for her class results: 60 68 77 89 98. Use this information to draw a box plot of the exam scores
Which of the following percentiles represents the median of a data set? Select one: a. 100th b. 25th c. 50th d. 75th
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Richard’s doctor had told him he needed to keep track of his blood sugar readings. Listed below are his 20 latest readings. He wanted to create a visual aid for himself in order to see how his blood sugar was doing. 75 125 110 82 178 209 150 130 120 142 90 98 107 163 135 129 147 152 110 100 A. Create a frequency distribution table for the given data set. B. Create a histogram for the data set. C. Describe the distribution of the data.
A veterinarian recorded how many kittens were born in each litter. This data is summarized in the histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) QUESTIONL: What is the frequency of the litter having at most 2 kittens? (PHOTO ATTACHED)
The correlation between midterm and final grades for 300 students is 0.620. If 5 points are added to each midterm grade, the new r will be: a. 0.124 b. 0.57 c. 0.62 d. 0.744
Jocelyn believes that the amount of sleep she tends to get on weekends differs from the amount of sleep she tends to get during the school week. To investigate this claim, she randomly selects 10 weekend days and 10 school days. She consults her smart watch to determine the number of hours she slept for each of the selected days. Here are the data. School week: 7, 7.5, 8, 6.5, 8, 7.5, 7, 6.5, 7, 8Weekend: 9.5, 9.5, 8.25, 8.5, 7.5, 10.25, 8, 7, 9.5, 10 Jocelyn would like to determine if these data provide convincing evidence that the true mean amount of sleep she gets on the weekend differs from the true mean amount of sleep she gets during the school week. She tests H0: μS – μW = 0, Ha: μS – μW ≠ 0, where μW = the true mean amount of sleep Jocelyn gets on the weekend and μS = the true mean amount of sleep she gets during the school week. The conditions for inference are met. What are the values of the test statistic and P-value for a t-test about a difference in means? Find the…
A sales manager recorded the number of sales made by each of the 300 salespeople working athis chain of furniture outlet stores on a Saturday and created the following table.# Sales (bins) Proportion of salespeople in this bin0 – 3 0.053 – 6 0.156 – 9 0.30 9 – 12 0.3512 -15 0.15a. What is the unit of observation in this sample?b. What is the variable collected?c. Draw and label the histogram for this dataset.d. Which is the modal category?e. Calculate the proportion of the salespeople made 9 or more sales.f. Calculate the number of salespeople who made between 0 and 9 sales.

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