1. The following data gives the number of social interactions of longer than 10 minutes in one week for a group of college students. 2 7 12 17 22 27 32 37 42 47 Compute the range, variance, and standard deviation.

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A: Correlation coefficient measures the strength and direction of the linear relationship between two…

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A: Given that  A pet association claims that the mean annual costs of food   for dogs and cats are the…

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A: We need to compute the  variance . These are the sample data that have been provided:  Salary…

Q: The owner of a minor league baseball team pays the nine starting​ players, the​ manager, and two…

A: x (x-xbar)^2 70 16900 100 10000 135 4225 175 625 185 225 190 100 205 25 210 100…

Q: 2.19 A set of data is mounded, with a mean of 300 and a variance of 144. Approximately what…

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A: Calculate Sample Variance (S2) from the following grouped data X Frequency 0 145 2 25 5 20…

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A: 1. The correlation coefficient is 0.9376 using the Excel formula “=CORREL(F1:F14,G1:G14)” 2) The…

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A: Correlation coefficient is denoted by r

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Q: The following are final grades (in terms of percentages) from a class of 20 students. 75 70 84 90 92…

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Q: 1. The following table shows the high temperatures over the last few days. Find the mean, median,…

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A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: - 6-6. Calculate mean deviation from median of the following distribution. Class Interval 50 100 100…

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Q: Determine if there is a significant correlation between the sets of data at a 10% significance…

A: From the given information, the claim of the problem is the significant  correlation between X and…

Q: 2. Kelly Sanchez is a college senior who is interviewing at several companies for a managerial…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: 9. Which of the following plots indicate a sample correlation coefficient close to 0? A. First plot…

A: If there is no correlation then the value of the correlation coefficient is 0.

Q: Suppose that the data below comes from a study on the yearly income of 15 Males statistics students,…

A: Given that : Student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Income 52 60 60 57 55 59 60 54 68 53…

Q: ) What is the population average and variance of weight loss in this group? b) What is the…

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Q: The following statements represent the dgrees of ten students in the subjects of democracy x and…

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Q: 1. The following data gives the number of social interactions of longer than 10 minutes in one week…

A: As per Policy I have calculated first main question  only

Q: A study was conducted of the 12-month earnings per share for two categories of airline companies.…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: The following table gives the number of family members of a sample of employees in a company: Number…

A: Solution : Given that, Number of family members Number of employees 3 8  4 12 5 24 6 28…

Q: We are interested in the number of years students in a particular elementary statistics class have…

A: Dispersion is used to measure the deviation of observation from the central measures. Variation is…

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Q: 9. Following are the caloric values of the fat content of meals served at three elementary school:…

A: Given: The data is shown below School 1 School 2 School 3 127 127 147 143 146 132 142 138…

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Q: 12. (a) A sample of 10 fathers and their sons gave the following data about their height in inches :…

A: We have to solve given problem: Formula of to calculate rank correlation coeffiecient is defined…

Q: Consider a sample of 100 insurance policies from a portfolio of a general insurance company. The…

A: It is been asked to find the sample variance using the given information.

Q: Consider the following data: 11 8 12 7. 10 Y 18 10 16 9. 13 What is the covariance for the sample?

A: Note: Please repost 2nd question as i can answer only 1 question as per my policy Given data,   X…

Q: Histogram: fines paid by drivers 12 10 4. 1 2 3 More Number of fines paid a year by a driver Compute…

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Q: 1. Solve the problem  Twenty families were interviewed, and the following numbers of dependent…

A: (a) From the data, the frequency for the number of children category 0 is 2 because 0 appear two…

Q: 4. A researcher conducts a study comparing two dif- ferent treatments with a sample of n = 16…

A: Given data for treatments isTreatment 1:-6,7,11,4,19,17,2,5,9,13,6,23,11,4,6,1Treatment…

Q: Q1) The following data represent the difference in scores between the winning and losing teams in a…

A: Point Difference (interval) Frequency(f) Mid value (x) (f)(x) (fx2) 1 – 5 8…

Q: the following are the scores of ten ABM students in their fourth-quarter examination: 26 37 45 35…

A: Solution: Let X be the scores. The given data is 26, 37, 45, 35, 31, 47, 23, 34, 44 and 38.

Q: Q) Consider the following ungrouped data: 18    11    22    19    24    24    23    10    11    16…

A: Mean is the average value around which the whole data set is concentrated. Mean for the set of 'n'…

Q: The owner of a chain of fruit shakes stores would like to study the correlation between atmospheric…

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Q: A. The following table shows the number of home runs hit by leaders in the category for the national…

A: A data can be raw or grouped, with some pro and cons associated with both of them. The raw data has…

Q: The following set of data is given 2; 4; 5; 3; 6; 2; 3 Determine the value of coefficient of…

A: It is an important part of statistics. It is widely used.

Q: Determine if there is a significant negative correlation between the sets of data at a 10%…

A: From the given information, the claim of the problem is the significant negative correlation between…

Q: 6. Data on GNP per capita and Birth Rate (births per thousand inhabitants) for a sample of 14…

A: Given - x¯ =1217.857143      and  y¯ =39.35714286 ∑x=17050 ∑y=551 ∑x2=41185500    ∑y2=23265…

Q: 20. Which of the following data show most likely the smallest possible variance or variability? A.…

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Q: B. The following data show the age of 180 random consumer of facial wash in a supermarket. Calculate…

A: Given data is Age No. of consumer(f) 9-15 12 16-22 52 23-29 68 30-36 28 37-43 13…

Q: 11. Find population variance and SD for the following data. 11 - 16 17 - 22 12 23 -28 20 29 -34 18…

A: Given : X f Nov-16 5 17-22 12 23-28 20 29-34 18 35-40 5

Q: Compute the Mean, Median, Mode of the two groups (Male and Female) Female Height (inch) Frequency…

A: x f fx 59 1 59 60 5 300 61 1 61 62 4 248 63 3 189 66 1 66   ∑f=15 ∑fx=923…

Q: Q1A) The file contins the overall miles per gallon (MPG) OF 2010 family sedan: 24  21  22  23  24…

A: Since you have posted a multiple questions, we will solve the first complete question and request…