Age at diagnosis for each of 20 patients under treatment for meningitis was given in a research paper. Suppose the ages (inyears) were as follows.18 18 25 19 22 20 6118 20 1818 2118 | 2018 19 28 171818n USE SALT(a) Calculate the values of the sample mean and the standard deviation. (Round your standard deviation to four decimalplaces.)sample mean21.8v yrstandard deviationX yr(b) Compute the upper quartile, the lower quartile, and the interquartile range.upper quartile20.75yrlower quartile18V yrinterquartile rangeyr(c) Are there any mild or extreme outliers present in this data set? (Enter your answers as comma-separated lists. If there is noanswer, enter NONE.)mild outliersextreme outliers(d) Construct the boxplot for this data set.70-70아606아606아5아5아5아5아4아4아4아40-3아3아3아3아2아2아2아2아

Answered: Image /qna-images/answer/89ba9f9c-7ff2-4e18-8995-77ab46be0f1d.jpg

Answered: Age at diagnosis for each 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 table below summarises data collected from male and female children about the time they spent on reading per week (X, in hours/week). Male Female All Sample size 20 22 ? 42 Sum values ? ? (i) of X Sum of X² values 8,648 17,352 (ii) 26000 Mean 19.9 27 ? 46.9 Standard Deviation 6.19 7.91 ? 14.1
A population of N = 5 scores has a mean of u = 20 and a standard deviation of o = 4. Which of the following is the correct Interpretation of the standard deviation? O The average distance of scores from the mean of p- 20 is 5 points. O The average distance of scores from the mean of u = 20 is 1 point. The average distance of scores from the mean of u = 20 is 4 points. O The average squared distance of scores from the mean of u = 20 is 4 points.
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A population has a mean µ = 87 and a standard deviation à = 23. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 257. ox = (Simplify your answer.) (Type an integer or decimal rounded to three decimal places as needed.) 33
An FDA representative randomly selects 88 packages of ground chuck from a grocery store and measures the fat content (as a percent) of each package. Assume that the fat contents have an approximately normal distribution. The resulting measurements are given below. Fat Contents (%) 12 15 16 13 15 13 15 13 Copy Data Step 1 of 2 : Calculate the sample mean and the sample standard deviation of the fat contents. Round your answers to two decimal places, if necessary
Age at diagnosis for each of 20 patients under treatment for meningitis was given in a research paper. Suppose the ages (in years) were as follows. 18 18 | 25 19 23 20 63 18 21 18 20 18 18 20 18 19 28 17 18 18 n USE SALT (a) Calculate the values of the sample mean and the standard deviation. (Round your standard deviation to four decimal places.) sample mean yr standard deviation yr (b) Compute the upper quartile, the lower quartile, and the interquartile range. upper quartile yr lower quartile yr interquartile range yr (c) Are there any mild or extreme outliers present in this data set? (Enter your answers as comma-separated lists. If there is no answer, enter NONE.) mild outliers extreme outliers
The data given below are the weights for a sample of babies. Assume the population of birth weights is normally distributed with a mean of μ= 7.10 DATA: 6.88 6.00 8.19 7.44 7.06 5.06 8.38 7.44 8.31 6.38 What is the mean weight in our sample? What is the standard deviation of our sample? What is the z-score for the heaviest baby in the sample? Give both the X-value and the z-score. What is the z-score for the lightest baby in the sample? Give both the X-value and the z-score. Assuming the distribution of birth weights is normally distributed, what percent of the babies in this distribution weigh more than our heaviest baby?
A Moving to another question will save this response. Question 1 Consider a sample with a mean of 30 and a standard deviation of 2.5. Use Chebyshev's theorem to determine the percentage of the data within the ranges from 23 to 37. O a. 61% O b. 75% O c. 87% Od. 83%

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