Seventeen different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for at test of the claim that the population mean is greater than 89 sec, what does df denote, and what is its value? C... What does df denote? OA. The number of degrees of freedom OB. The test statistic OC. The sample size OD. The sample standard deviation The value of df is. (Type an integer or a decimal. Do not round.)

Q: The variance of the data shown in the histogram is 232. Estimate how many standard deviations the…

A: Given the histogram as

Q: The number of assists per match for the setter on IVC's volleyball team has a mean of 51 and a…

A: Given information- Population Mean µ = 51 Standard deviation (σ) = 13 We have to find the number of…

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A: Given data, At the end of the semester a professor wants to organize student’s grades by how many…

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A:

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: Obtain the 2th percentile of the distribution. The 2thpercentile of the distribution is obtained…

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: The measure of dispersion which shows the variation about the mean is O a. Standard deviation O b.…

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

Q: Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM.…

A: Here, x y d=x-y d-d (d-d)2 98.1 98.5 -0.4 -0.26 0.0676 98.8 99.1 -0.3 -0.16 0.0256 97.1…

Q: Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM.…

A: Given observation and calculation is shown below

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A:

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: normal distribution μ = 100σ = 15P(75<x<110) = ?

Q: The mean of the sample means equals The population standard deviation. The population mean. The…

A: As per central limit theorem Mean of sample means  is x̅ = μ x̅ = sample mean μ = Population mean

Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A:

Q: The measure of dispersion which shows the variation about the me O a. Standard deviation O b.…

A: The coefficient of variation (CV) is a statistical measure of the dispersion of data points in a…

Q: What symbol is used for the standard deviation when it is a sample statistic? What symbol is used…

A: We know that-

Q: standar For Jesse 13. a. Find the mean and standard deviation of a normal distribut of marks in an…

A: Note: we are using standard normal distribution table.

Q: H=34, o=4.5, the score is 2.5 standard deviations above the mean

A: Suppose the variable of interest is x.The mean is and the standard deviation is .

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A:

Q: Which one of the following is an example of a point estimate? Select one: a. the sample mean b.…

A: The sample mean is the point estimate of the Population mean. We estimate the Population mean on the…

Q: Now, randomly select 4 samples of size n = 10 from the population. Record the samples below. As…

A: Given information: The data represents samples means of a randomly selected samples of size 10.

Q: A statistics professor surveys all 100 of the students in an introductory statistics lecture. The…

A: In this context, it that the professor conducts the survey on all 100 students in an introductory…

Q: elect ALL the ways that variation in the data can be measured below. A. The mean of the data B. The…

A: We have to find ways that variation in the data can be measured

Q: What symbol is used for the standard deviation of a population? O a. X-bar O b.H O C. S O d. o

A: Standard deviation: The positive square root of the mean square of the deviations taken from the…

Q: d. Determine the sample standard deviation. Round your answer to 2 decimal places. e. Determine the…

A: The data set are :- X :- 29.6 32.4 38.7 42.4 44.5 46.4 49.0 60.8 70.2 Then,  We will find sample…

Q: Assume that a randomly selected subject is given a bone density test Bone density test scores are…

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

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: The mean is 0 and the standard deviation is 1.

Q: Square of the standard deviation is called

A:

Q: THE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE STANDARD…

A: From the provided information, The frequency distribution table is as follow: Score interval f…

Q: The mean of an examination is 69, the median is 68, the mode is 67, and the standard devi. 3. The…

A: Given data, Mean=69 Median=68 Mode=67 Standard deviation=3   Variation Coefficient=?

Q: Which of the following are measures on positions of a data seta the maximum the standard deviation…

A: Solution : Measures on positions of a data sets - Positional measures are also referred as measures…

Q: In the United States, the distribution of a male's height has a mean of 69 inches with a standard…

A: The z-score is to measure how far the standard deviation is from the mean (above or below). If…

Q: The coefficient of variation CV describes the standard deviation as a percent of the mean. Because…

A: CV = (Standard deviation/Mean) *100

Q: The mean July daily rainfall in Waterville is 10mm and the standard deviation is 1.5mm. Assume that…

A: Let, X = Amount of rainfall in July. Given that the data is normally distributed with mean 10mm and…

Q: Students in a class took a test whose results were normally distributed.  The mean score was an 81…

A: Students in a class took a test whose results were normally distributed.  The mean score was 81 and…

Q: The mean value in a dataset is 100, and the value of one standard deviation is 20. What is the value…

A: given data mean(μ) = 100sd(σ) = 20for score that is 2.5 SD above mean, x = ?

Q: ease awnser following question    2. An overbearing mother recorded the number of minutes her…

A: Note: As per the guidelines, we are only allowed to solve three subparts, please post the other…