10. The heights of a group of 20 students were recorded to the nearest centimeters as follows:153, 157,161, 159, 160,162,161,159, 161,161,160,175,160,159,, 158, 164,a. Find the mean and the standard deviation of the group.b. An outlier is defined as a value that is more than two standard deviations awayfrom the mean. In this group, give the boundaries for outliers and identify if thereis/are outliers.157, 164,164,159

For a set of n observations, x1, x2, ... , xn, mean is given by, And the standard deviation is…

Answered: 10. The heights of a group of 20…

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 5-number summary for a specific data set is given below. Use this information to determine if the data has any outliers. If it does, list one known outlier. If not, type the number 0. min = 2, Q1 = 3, median = 4, Q3 = 7, max = 12
Do number 4 and 5. This is not graded.
a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 646457555565565954616062566279
Let the height data (105)represent sample. Use an appropriate statistical test to check whether the population mean is different from 170 cm.Use α = 0.05.Also, write a substantive conclusion and explanation. Use an appropriate graph to check if data is normally distributed. Do it in R commander.
a. Find X23,10. Draw the distribution and identify the x²-value in the distribution. b. Find F24,30,.05. Draw the distribution and identify the F-value in the distribution. c. Find t18,005. Draw the distribution and identify the t-value in the distribution.
this only shows a but a b and c
A variable is normally distributed with mean 15 and standard deviation 3. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 14. b) Find the area to the left of 12. c) Find the area to the right of 13. d) Find the area to the right of 16. e) Find the area between 12 and 25. Question Help: D Post to forum Calculator Submit Question
The average height of 1,000 children is 150cm with a standard deviation of 10cm. How many children stand between 155cm and 150cm ? A. Find the raw score for z= -1,-2,-3,+1,+2,+3 B. Sketch the graph C. What z score corresponds to 50? D. What z score corresponds to 60? E. Find the total area . F. Multiply the total area by 1000. G. Make a conclusion.
The following set of data is given 78,79,79,79, 80, 82, 82, 85, 86, 88, 89, 92, 97. For this set of data find: a) The value of the median and the quartiles. b) The mean, mode and the standard deviation. c) Draw a suitably labelled box plot and determine the interquartile range. d) State if there is any type of skew
Use the accompanying data set to complete the following actions. a. Find the quartiles. b. Find the interquartile range. c. Identify any outliers. 41 50 35 43 41 37 41 46 43 39 36 54 42 35 15 53 37 49 29 29 a. Find the quartiles. The first quartile, Q₁, is 1. The second quartile, Q₂, is The third quartile, Q3, is (Type integers or decimals.) b. Find the interquartile range. The interquartile range (IQR) is (Type an integer or a decimal.) c. Identify any outliers. Choose the correct choice below. O A. There exists at least one outlier in the data set at (Use a comma to separate answers as needed.) OB. There are no outliers in the data set. 0 C
The attached plots were constructed using a sample of 272 observations. Each observation gives the elapsed time (in minutes) of an eruption of Old Faithful geyser in Yellowstone national park. a. Which graph is more appropriate for this data set? Explain your answer. b. Use the plots to describe the shape of the distribution of this data set. c. Are there are any potential outliers in this sample? Explain
Illustration 11.18. It is known that.Yand the median of a distri- bution are 3.0 and 4.0. Is the distribution skewed?

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