ΣΣΤ. Lesson 7.1, Certify Mode. Questio .x.1, Can a normal approximation be仓A learn.hawkeslearning.com/Portal/Lesson/lesson_certify#!+ Save & Exit CertifyLesson: 7.1 Sampling Distributions and the...LORETTA STONE6/10Question 7 of 8, Step 1 of 1CorrectCan a normal approximation be used for a sampling distribution of sample means from a population with u = 47 and o = 9, when n = 4?Answer囲 Tables画 KeypadKeyboard ShortcutsO No, because the standard deviation is too small.O Yes, because the mean is greater than 30.O No, because the sample size is less than 30.O Yes, because the sample size is less than 30.Submit Answer© 2021 Hawkes Learning

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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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A simple random sample of 100 observations was taken from a large population. The sample mean and the standard deviation were determined to be 81 and 9 respectively. The standard error of the mean (i.e. the standard error of the sampling distribution) is 8.10 0.90 O 0.81 O 0.27 Clear my choice
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Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 65, 55, 58, 62, 94, 85, 53, 84, 70 rangel standard deviation variance
3. The following box plots show the distribution of test scores in Ms. Williams's two sections of calculus A period С peпod 50 60 70 80 90 100 score Based on these box plots, which one of the f'ollowing statements must be true? A The first quartile for the two sections is the same B The lowest score in A period was close to the 15th percentile of the C period class C The mean score for students in C period was higher than the mean score for students in A period
4
The standard deviation of the given the data (14, 13, 16, 9, 3} is ♦ If the average American male is 5'10" and the standard deviation is 3", then Yao Ming who is 7'6" is within ◆ standard deviations of the mean? An outlier is an extreme value that is significantly less or more than the rest of the data. In the data below take out the outlier, then calculate using a statistics calculator or spreadsheet, the standard deviation of the heights of 15 soda cans. {92.8, 92.8, 92.9, 92.9, 92.9, 92.8, 92.7, 92.9, 92.1, 92.7, 92.8, 92.9, 92.9, 92.7, 92.8} Round to the nearest 100th. Answer:
3. Complete the first 3 columns of the table below. Values Deviations Square deviations X - X X (X-X)² Standard (z) scores X - X S Z= a. Compute the sample variance and sample standard deviation by definition. b. Fill in the last column of the table c. Compute the coefficient of variation.
step by step please
Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 74, 47, 85, 50, 62, 93, 56, 57, 75 range standard deviation variance
The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance, and standard deviation of the population data set. 2, 7, 15, 5, 14, 10, 12, 8, 3, 9 The range is 1313. (Simplify your answer.) The population mean is . (Simplify your answer. Round to the nearest tenth as needed.) The population variance is nothing. (Simplify your answer. Round to the nearest tenth as needed.) The population standard deviation is nothing. (Simplify your answer. Round to the nearest tenth as needed.)
Please state if the statement is correct or wrong and explain why. Statement 1. The sampling distribution of the sample mean with a sample size of 12 has a smaller standard error than that of the sampling distribution of the sample mean with a sample size of 13. Statement 2. Degrees of Freedom is one of the parameters of the normal distribution. Statement 3. A parameter is a function of a sample.
The average number of words in a romance novel is 64,289 and the standard deviation is 17,272. Assume the distribution is normal. Let X be the number of words in a randomly selected romance novel. Round all answers to 4 decimal places where possible.b. Find the proportion of all novels that are between 62,562 and 79,834 words. ________________c. The 85th percentile for novels is words. (Round to the nearest word) ________________d. The middle 70% of romance novels have from _______ words to _______ words. (Round to the nearest word)

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