The daily rates of a sample of eight employee at POL Corp. are $550, $420, $560, $500, $700, $670, $860, and $480. Show your complete solutions on finding the variance and standard deviation.

Q: Find the variance for this data set of salaries 30, 34, 52, 48, 25, 36, 27 Round the…

A: The mean of the sample data can be obtained as:

Q: Define range, interquartile range, variance and standard deviation.

A: Range: The range is the difference between the maximum value and the minimum value. Range = maximum…

Q: Find the sample standard deviation.

A: Given that:n= 12  Sample size

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A:

Q: Dr. Samwell Tarly wants to estimate the number of books checked out of the library in the past year.…

A: It is given that the mean is 10,000 and the standard deviation is 10.

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9, 4, 7, 1, 4.

A: Considering the scores as population. The population mean is, μ=∑XN=9+4+7+1+45=255=5 Thus, the…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

A:

Q: Use the following data set: 64, 65, 65, 67, 68, 79, 72, 65, 72, 24, 76, 82, 81, 89, 88, 85, 66, 74,…

A: a) Mean: Mean=∑i=1NXiN=144720=72.35 Standard deviation:…

Q: Name two kinds of statistical data and describe them in brief.

A:

Q: 2, 5, 9, 13, 17, 202. Find the standard deviation for the above sample data.

A:

Q: What is an everyday example of variance within samples?

A: If we need to know the variance within samples, we need to use ANOVA Test.

Q: The sample of five companies in the aerospace industry was surveyed as to their return on investment…

A: We have to find sample variance s2  and sample standard deviation...

Q: Find the mean and standard deviation for the given data set, 34,56,23,11,76,85,94,54,66,10

A: According to the given information in this question We need to find the value of mean and standard…

Q: developmental psychologist is interested in studying how long babies gaze at a photograph of a human…

A: Given data, 12, 15, 16, 20, 20, 27 Sort the data in ascending order. 12,15,16,20,20,27

Q: Compute the mean, median, Variance, and the standard deviation for the data below: 3,2 ,3, 4, 3…

A:

Q: Find the variance of the following sample data: 11, 13, 14, 15 and 21 (Write the answer up to 1…

A: Given that  11,13,14,15,21 To find the variance

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated.

A: Population standard deviation, σ =3 inches Sample size n=6

Q: Calculate Median, Q1, Q3 and IQR, sample mean, sample variance, and sample standard deviation for…

A: Given: data 48, 92, 47, 44, 94, 18, 95, 67, 74, 64

Q: A local college newsletter reported that the average American college student spends one hour (60…

A: MalesFemales1804596060603030451015518072090300120601501801518010018060210602109018015060759060270604…

Q: Find the range, the standard deviation, and the variance for the given samples. Round nointeger…

A: Given data n=11 69,88,94,99,84,67,98,77,71,62,93

Q: Can the median split a distribution into a 85% : 15% frequency ratio of the observations?

A: Given: split the distribution into a 85% : 15% frequency ratio of the observations

Q: a. Assuming that the variances in the population of times spent on the website per day are equal, is…

A: The test is to check whether there is a difference in the mean time spent on the website per day…

Q: days in Buffalo, NY: {17, 26, 3, 13, 29, 34, 32, 30, 41} Which of the following values represent the…

A: Given data, 17,26,3,13,29,34,32,30,41   Standard deviation=? Variance =?

Q: Discuss the differences between an ANOVA and a correlation. Write as many differences as you can…

A: ANOVA: It stands for Analysis of Variation. It is a statistical measure used to compare more than…

Q: Explain the term "deviation scores"?

A:

Q: Find standard deviation of each sampling distribution

A: here  given, According to a gallup survey of boys 77% of boys had played computer games in the past…

Q: What is the mean of the data set comprising the numbers 7, 8, 4, 5 and 11

A: Data set: 7, 8, 4, 5 and 11 Number of observations = 5

Q: Given the sample data 85 85 85 85 85 85 85. Find the variance and the standard deviation of the…

A: Let X denote the sample data. The standard deviation of the data can be calculated as SD =…

Q: Considering the data, 16,18,12,72,23,73,16,66,81 Calculate the median?

A: Answer: Given data, 16,18,12,72,23,73,16,66,81 Sample size (n) = 9

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

A: Given, Cost of repair is 430,461,416,221

Q: A football coach claims that the average weight of all the opposing teams’ members is 210 pounds.…

A: Consider that μ is the true average weight of all the opposing teams’ members.

Q: hat is the median

A: we can create a frequency distribution from the given data x f cf 5 1 1 30 5 1+5 = 6 60 1…

Q: Seven students on an intramural team weigh 179 ​lb, 177 ​lb, 174 ​lb, 185 ​lb, 167 ​lb, 186 lb and…

A: Given179,177,174,185,167,186,220sample size(n)=7

Q: The prices of an airline flight from New York City to Los Angeles on September 7, 2013 around 8…

A: a.Mean:

Q: The Hermis Burger Joint pays its 5 hourly employees $6, $3, $5, $7 and $6 per hour. Can you please…

A: Given n=5 employees $6, $3, $5, $7 and $6

Q: Describe when you would use an analysis of variance versus an independent samples t-test.

A: Analysis of variance (ANOVA) is used when we have more than two independent samples whereas…

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

A: Given data is ,424 , 455, 406, 211

Q: which one is more precise sample variance or population variance

A: We want to tell you which one is more precise.