The average price of a college math textbook textbooks are randomly chosen. Round all answers to 4 decimal places where possible. $167 and the standard deviation is $21. Suppose that 9 a. What is the distribution of ? I - N b. For the group of 9, find the probability that the average price is between $160 and Ş164. C. Find the third quartile for the average textbook price for this sample size. S (round to the

The average price of a college math textbook textbooks are randomly chosen. Round all answers to 4 decimal places where possible. $167 and the standard deviation is $21. Suppose that 9 a. What is the distribution of ? I - N b. For the group of 9, find the probability that the average price is between $160 and Ş164. C. Find the third quartile for the average textbook price for this sample size. S (round to the

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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Refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Find the mean and standard deviation for the number of girls in 8 births. Click the icon to view the data table. The mean is μ = girl(s). (Round to one decimal place as needed.) The standard deviation is o = girl(s). (Round to one decimal place as needed.) Table of numbers of girls and probabilities Number of Girls x 8678 A WN 10 2 3 4 5 Print P(x) 0.003 0.032 0.114 0.227 0.266 0.214 0.112 0.029 0.003 Done - X 35 Next
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Provide an appropriate response. Use the Standard Normal Table to find the probability. IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual's IQ score is found to be 120. Find the z-score corresponding to this value. A. −1.33 B. 1.33 C. −0.67
Please answer the attached question. Thank you.
Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal places. μ=49 and σ=12; n=46; x¯=52
Please show your work. It is one question with multiple parts. Please answer all the parts. Thank you.
50 part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: # of Courses Frequency Relative Frequency Cumulative Frequency 1 13 2 22 3 4 5 a. Complete the table above b. Find the sample mean and sample standard deviation. c. How many standard deviations above or below the mean is taking three classes? d. Find the probability that someone takes at least 3 classes.
a.Consider the data set. 2, 3, 5, 8, 9 Compute the population standard deviation. (Round your answer to two decimal places.)? =? b.Consider the data set. 2, 4, 5, 6, 7 Compute the sample standard deviation. (Round your answer to two decimal places.)s = ? c.Consider the data set. 2, 3, 5, 6, 7 Find the range.
The average production cost for major movies is 62 million dollars and the standard deviation is 18 million dollars. Assume the production cost distribution is normal. Suppose that 49 randomly selected major movies are researched. Answer the following questions. Give your answers in millions of dollars, not dollars. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N 62 18 b. What is the distribution of x? a - N( 62 2.5714 c. For a single randomly selected movie, find the probability that this movie's production cost is between 61 and 63 million dollars. d. For the group of 49 movies, find the probability that the average production cost is between 61 and 63million dollars. e. For part d), is the assumption of normal necessary? O YesO No Hint: Some Helpful Videos: Finding the Sampling Distribution [+] Finding a Probability Using the Central Limit Theorem [+] Finding Value Given a Probability Using the Central Limit Theorem [+] • The Central…
Provide an appropriate response. Use the Standard Normal Table to find the probability. IQ test scores are normally distributed with a mean of 105 and a standard deviation of 11. An individual's IQ score is found to be 114. Find the z-score corresponding to this value. Round the answer to the nearest hundredth. O A. -0.82 OB. -1.22 O C. 0.82 O D. 1.22 C
What is the answer of d and e . I have only 10 minute please help me
Find the mean and stand deviation for each sample. sample A 5,11,17 sample B 77,82,88 sample C 1,075,1,081,1,087