The following data represents the GPA of a sample of 15 students enrolled in a history class. 3.4, 3.9, 4.0, 2.8, 3.5, 2.6, 3.2, 3.6, 1.9, 2.1, 2.0, 3.3, 2.4, 1.8, 3.2 (a) Find the first quartile. Do not include the median in the calculations. Answer: (b) Find the third quartile. Do not include the median in the calculations. Answer: (c) Find the mean.(Round to 2 decimal places.) Answer: (d) Find the median. Answer: (e) Find the mode. Answer: (f) Find the range. Answer: (g) Find the interquartile range (IQR). Answer: (h) How many outliers are there in this data set? Answer:

Q: The following data set indicates the ages of a sample of eleven employees from company B. 29 22 37…

A:

Q: that presents 30 test scores on an exam, find the 63rd percentile. State your result/answer as a…

A: Let X be the test scores on an exam. The given data is : 49.5, 48, 51, 50, 53.2, 52, 55, 54, 57, 56,…

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A: There are total 18 observations.

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A:

Q: Given the following data set that presents 30 test scores on an exam, find the 95th percentile.…

A: 95th percentile= 95*(n+1)/100th term

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A: Correct option is 3. 3.The median price is not greater than $750,000.

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A: Solution

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A: Class interval Frequency Cumulative Frequency 30-34 10 10 35-39 9 19 40-44 4 23 45-49 10 33…

Q: Examine the following data set. 1.3, 2.5, 3.1, 4.2, 5.7, 5.7, 5.7, 6.4, 6.4, 8.9, 8.9, 9.1, 11.7,…

A: Given data, 1.3,2.5,3.1,4.2,5.7,5.7,5.7,6.4,6.4,8.9,8.9,9.1,11.7,12.2,12.6,13,14.4,15 What is the…

Q: Find the 64th percentile, P64, from the following data 10.6 11.1 11.4 12.5 14 18.4 18.7 19.2 20.1…

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Q: Based on the following set of data, compute for the mean, median and mode.

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Q: Given the following data set that presents 30 test scores on an exam, find the 95th percentile.…

A: Given data and calculation for mean and sample standard deviation is shown below

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A: Given information: 5.5, 7.5, 14, 14.5, 15.8, 18, 19.3, 23.7, 24.3, 26.1

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Q: Determine the median and the first and third quartiles in the following data.

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A: Given that the frequency table to calculate mean, median and mode.MEAN:For discrete series,

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A: Arranging the data in ascending order: 5, 8, 9, 11, 12, 15, 16, 17, 22, 55   n=10

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Q: (d) What height corresponds to the 95th percentile in the Galton study?

A:

Q: The following data represent the weights in pounds of a sample of 25 police officers: 164, 148, 137,…

A: We know that Lower or First Quartile (Q1) : It is the median of the lower half data value. Lower…

Q: Compute the mean, median, and mode for the set of scores presented in the following frequency…

A:

Q: The following data represents the number of home runs that Ryan Howard, a Major League Baseball…

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Q: Which of the following is not a statistical question? How old are the students in my school? How…

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

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A: to find which percentile represents the median .

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A:

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Q: An ANOVA is used to compare the mean GPA of the following groups of students.

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Q: The following data shows the results for 20 students in one of the post graduate unit. 42 66 67 71…

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Q: Calculate the 25th percentile of the data shown x 2.6 5.8 7.3 8.8 19.3 21.3 23.6 24.7

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Q: Refer to the following set of data. 42 45 32 27 38 12 32 18 40 22 The mean is

A: Given data is ,42 , 45 , 32 , 27 , 38 , 12 , 32 , 18 , 40 , 22Sample size(n)=10

Q: Given the following table of scores, calculate the indicated locator and percentile. Do not round…

A: given data set: 5,11,26,27,31,32,37,42,49 sample size (n) = 9

Q: Find the upper quartile of the following set scores: 1, 3, 4, 5, 6, 8, 11, 13, 17

A:

Q: In the data set below, what is the upper quartile?

A:

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.