5. For a population with u= 70 and o = 20, how much error ( what is the standard errorof the mean ) would you expect between M and µ ?a. n=4 scoresb. n= 16 scoresc. n=25 scores

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Answered: 5. For a population with u= 70 and o =…

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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2. What percent of values of a normally distributed variable lie between the mean and two standard deviationsbelow the mean?A. 47.5%B. 34% C. 95% D. 68%
Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal places. μ=29μ=29 and σ=8σ=8; n=66n=66; x¯=28
The amount of trash generated by US households (in lbs per day) is normally distributed. You take a sample of 10 people. The sample average is xbar=10.91 lbs, and the sample standard deviation is s=4.736. What is the 99% Conf. Int. for the mean? Group of answer choices a. 6.04 to 15.78 b. 8.33 to 13.49 c. 8.09 to 13.73 d. 7.74 to 14.08
Suppose a set of data has mean u = 29 and standard deviation o=1.2. (Give answers accurate to three decimal places.) a. What is the z-score for the data value z = 31? b. What is the z-score for the data value z = 26? C. What data value corresponds to the z-score: z = 1.6? d. What data value corresponds to the z-score: z =-1.1?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately g=7. You would like to be 95% confident that your estimate is within 1 unit of the population mean. How large of a sample size is required? A.n = 918 B.n = 133 C.n = 313 D.n = 189
A. What is the 95% Cl of a population mean when the mean of a sample is 10, the standard deviation is 2, and the sample size is 100? B. What is the 95% Cl of a population mean when the mean of a sample is 10, the standard deviation is 2, and the sample size 25? C. discuss the difference in these Cis. What is the relationship between the Cl range and sample size?
A researcher measures the relationship between hours worked by employed students and the number of units taken during the first semester of college for each individual in a group of 25 community college students. For this study: a. If we calculate the average hours worked by these community college students, the average would be an example of a ________ statistic b. Is a sample or population being measured here? c. What kind of a research study is this? d. N/n = e. What level of measurement is the number of units taken? Step 2 – check your work! Was your answer correct? If not, please make any correction here: Step 3 - if your answer was incorrect, please write out what was wrong (skip this if you were correct) show working for each
forD, E, and F I have the following and want to see if correct:D=0.9579 E=14 F= var(x)=4.2 std deviation= 2.05
2.The masses of durians in a farm are normally distributed with a mean μ and a standard deviation, o.The mass of percentages of durians that less than 400 g is 15.87% and more than 500 g is 6.68%. Find the values of u and o
The next five questions refer to the following scenario: • sample mean T = 10 • sample size n = 100 • population standard deviation O = 4
3. Find the standard deviation of X. A. 2.77 B. 2.79 C. 2.81 D. 2.83 E. 2.85
4. A new method for cholesterol utilizing 4 - aminoantipyrine was evaluated in the laboratory. The procedure was run in on 20 separate days. The following values are given: Mean = 150 mg/dl Sum of the squared difference from the mean is 3600 Calculate the SD.

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5. For a population with u= 70 and o = 20, how much error ( what is the standard error of the mean ) would you expect between M and µ ? a. n=4 scores b. n= 16 scores c. n=25 scores