When a population is finite, the formula that determines the standard errorof the mean needs to be adjusted. If N is the size of the population and nis the size of the sample (where n ≥ 0.05N), the standard error of the meanis shown below. The finite population correction factor is given by theexpression (N-n)/(N-1). Determine the finite population correctionfactor for each of the following.(a) N = 1700 and n = 850(c) N = 1700 and n = 125(e) What happens to the finite population correction factor as the samplesize n decreases but the population size N remains the same?(b) N = 1700 and n = 170(d) N = 1700 and n = 85(a) The finite population correction factor is(Round to three decimal places as needed.)

Given the sample size and population size.want to calculate the finite population correction…

Answered: When a population is finite, 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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To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 4.0 in a 5 credit Math course 2.5 in a 3 credit Music course 2.7 in a 5 credit Chemistry course 3.3 in a 6 credit Journalism course What is the student's GPA for that term? Round to two decimal places Student's GPA =
A sample is selected from a normal population with a mean of µ = 40. If the sample mean is M = 45, which of the following combinations would make the sample mean an extreme, unrepresentative value for the population
A researcher collects data that represents the average number of hours of sleep in the last two nights by 8 depressed patients and 9 non-depressed patients. The researcher is interested in whether the two groups reliably differ in the amount of sleep they get. Use Jamovi to calculate t-obt and the p value.
A researcher want to know if there is a relationship between sleep and anxiety. The researcher randomly selected n = 5 participants and asked each to rate their sleep quality and anxiety level on a scale of 1 to 5. The data are below: Sleep X Anxiety Y 2 2 3 3 2 2 4 2 5 2 Calculate the Sum of Squares for X (SSX)
Assume that we have made 10 repeated measurements of a quantity, and as a result the error assigned to the “best estimate” of the mean is 6. If we then expand our data set to a total of 20 measurements, the error in the mean will reduce to just 3. True or False
For a population with m = 40 and s = 8: a. Find the z-score for each of the following X values. (Note: You should be able to find these values using the definition of a z-score. You should not need to use a formula or do any serious calculations.) X=44 X=48 X=56 X=38 X=34 X=32
Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. x 1004 975 992 935 989 922 y 40 100 65 145 84 153 (c) Use a calculator to verify that x = 5817, x2 = 5,645,135, y = 587, y2 = 67,315 and xy = 561,857. Compute r. (Round your answer to three decimal places.)
Suppose a random sample of size 41 is selected from a population with o = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite (to 2 decimals). b. The population size is N = 50,000 (to 2 decimals). c. The population size is N= 5000 (to 2 decimals). d. The population size is N = 500 (to 2 decimals). Hint(s) Check My Work
By how many times does the sample size have to be increased to decrease the margin of error by a factor of 1 to decrease the margin of error by a factor of 51 The sample size must be increased by a factor of (Type a whole number.) What is the general relationship, if any, between the sample size and the margin of error? OA. Increasing the sample size by a factor M results in the margin of error decreasing by a factor of M2 O B. Increasing the sample size by a factor M results in the margin of error decreasing by a factor of 1 M 1 OC. Increasing the sample size by a factor M results in the margin of error decreasing by a factor of VM O D. There is no relationship between the sample size and the margin of error.
A large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over the preceding three year period. Single Policyholders Married Policyholders n1 597 n2 = 780 %3D Number making claims 89 Number making claims 115 a. Use a = 0.05. Test to determine whether the claim rates differ between single and married male policyholders. z-value (to 2 decimals) p-value (to 4 decimals) We - Select your answer - v that there is the difference between claim rates. b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number.

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