7(2) (Weights of Children) Listed below are the weights (in pounds) of 20 six graders randomly selectedfrom a group of millions.70 92 85 75 90 95 71 8073 60 63 72 53 69 83 81 71 77 80 100(a) Construct a stem-and-leaf plot and make your comment on the shape of the distribution. Canwe assume the weights of all children in the group are approximately normally distributed?(b) Calculate the mean and standard deviation of the sample data (Write the formulas used inthis calculation).(c) What is the point estimate for the mean weight of all children in this group? Check whetherthe requirements are satisfied in order to apply the central limit theorem for the samplingdistribution of the sample mean à (assuming normality of population).(d) Construct a 95% confidence interval estimate of for the mean of all children in the group.(e) Write a brief statement that accurately describe your results and includes all relevant infor-mation in plain English. What do the result tell us about the mean weight of college students?

(2) (Weights of Children) Listed below are the weights (in pounds) of 20 six graders randomly…

Answered: 7 (2) (Weights of Children) Listed…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Height distributions generally have a predictable pattern. In a large introductory statistics class, students were asked to report their height. The histogram displays the distribution of heights, in inches, for 266 females from this class. 80- 70- 60- 50- 40- 30- 20- 10- 55 57 59 61 63 65 67 69 71 73 75 Height (inches) Describe the shape, center, and variability of this distribution. Number of females
Using your calculator, find the range and standard deviation, round to two decimals places:The table below gives the number of hours spent watching TV last week by a sample of 24 children. 75 84 49 32 59 48 69 81 34 67 78 50 46 48 83 32 29 54 21 83 47 58 91 15 a) Range = b) Standard Deviation =
Age of residents in a neighbourhood 26 45 27 50 40 52 12 28 48 52 14 20 32 9 36 10 36 51 42 1 30 21 40 37 13 35 57 47 42 53 Create a box-and-whisker plot for the data. What is the sample standard deviation of the data set? Use IQR and the standard deviation to determine if there are any outliers in the data set. I am unsure of my answer for the last question as I got IQR= 26 and - 18 and 85 when I inputed the numbers for it
The range of the sample data is what Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 39 38 36 29 19 18 15 11 10.7 9.9
A sample plot. Construct the normal quantile plot, then determine whether the data appear to be from a population with a normal distribution. human brain volumes (cm) is given below. Use the given data values to identify the corresponding z scores that are used for a normal quantile plot, then identify the coordinates of each point in the normal quantile 1073 1041 1087 955 1061 1087 1401 1043 List the z scores for the normal quantile plot. (Round to two decimal places as needed. Use ascending order.) Question Viewer Clear all Check answer Help me solve this View an example Get more help -
Listed below, from left to right and then top to bottom, are numbers of law enforcement fatalities for 20 recent and consecutive years. First find the mean, identify each value as being above the mean (A) or below the mean (B), then test for randomness above and below the mean using α = 0.05. Is there a trend? 183 140 173 172 144 163 242 159 150 165 164 155 191 147 124 160 171 125 106 116 The mean is. (Type an integer or a decimal. Do not round.) C
The table below shows the frequency distribution of the rainfall on 52 consecutive Tuesdays in a certain city. Use the frequency distribution to construct a histogram. Do the data appear to have a distribution that is approximately normal? Class 0-0.19 0.20 -0.39 0.40 -0.59 0.60-0.79 0.80 -0.99 1.00-1.19 1.20-1.39 Frequency 22 13 4 1 5 6 1 Choose the correct histogram below. OA. OB. O C. 30- 20- 10- 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 10- 0+ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 30- 20- 10- 0+ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Q Q Q Do the data appear to have a distribution that is approximately normal? O A. No, it is approximately uniform. OB. No, it is not symmetric. OC. No, it has no obvious maximum. O D. Yes, it is approximately normal.
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 41 40 38 31 23 21 19 18 17.8 17.2
Plz help asap 5.
The following data are the final exam scores of the 10 students in a small calculus class. 86 75 94 86 81 65 78 90 61 60 Are these population or sample data? What is the range for this data set? What is the variance for this data set? Round your answer to three decimal places, if necessary.What is the standard deviation for this data set? Round your answer to three decimal places, if necessary.
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 40 39 38 31 23 19 16 12 11.7 11.1 The range of the sample data is $ ? million. (Type an integer or a decimal.)

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS