Find the minimum sample size n needed to estimate u for the given values of c, o, and E.c=0.95, o = 9.3, and E= 1Assume that a preliminary sample has at least 30 members.n= (Round up to the nearest whole number.)

Given: Confidence level c=0.95 Standard deviations=9.3 and margin of error E=1 Then to find…

Answered: Find the minimum sample size n needed…

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. Calculate how much difference is expected, on average, between two sample means if: n1 = 4, n2 = 6, and the pooled variance is 60 (Assume the two samples were selected from the same population) b. Calculate how much difference is expected, on average, between two sample means if: n1 = 12, n2 = 15, and the pooled variance is 60 (Assume the two samples were selected from the same population)
Three randomly selected children are surveyed. The ages of the children are 3, 5, and 10. Assume that samples of size n= 2 are randomly selected with replacement from the population of 3, 5, and 10. Listed below are the nine different samples. Complete parts (a) through (d). 3,3 3,5 3,10 5,3 5,5 5,10 10,3 10,5 10,10 . a. For the population, find the proportion of odd numbers. The proportion is (Round to three decimal places as needed) b. Find the proportion of odd numbers of each of the nine samples, then summarize the sampling distribution of the medians in the format of a table representing the probability distribution of the distinct proportion values ce! Sample Proportion Probability Tool (Type integers or simplified fractions.) c. Find the mean of the sampling distribution of the sample proportion of odd numbers. The mean is (Round to three decimal places as needed ) Next Activane
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from the given parameters of the population and sample size. and o Determine H= 86, o = 16, n 64
The instructor takes a random sample of size from the population data and obtains the following sample data: x 405 385 495 385 555 470 5 If we take random samples of size n = 6 from this population, the number of possible samples is: a 11,481,019,312 b 11,367,345,853 c 11,254,797,874 d 11,143,364,232
Three randomly selected children are surveyed. The ages of the children are 1, 4, and 10. Assume that samples of size n = 2 are randomly selected with replacement from the population of 1, 4, and 10. Listed below are the nine different samples. Complete parts (a) through (d). 1,1 1,4 1,10 4,1 4,4 4,10 10,1 10,4 10,10 14 (Round to three decimal places as needed.) b. Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values. 0 4.5 18 40.5 Probability 1 320 NONS 9 2 9 2 9 (Type integers or simplified fractions.) c. Find the mean of the sampling distribution of the sample variance. (Round to three decimal places as needed.)
A population consists of 35% sixes and 65% fives. What will be the variance for the distribution of sample means for samples of size two selected from this population? a) 14.425 b) 0.2275 c) 0.11375 d) 28.85
Which of the statements below is true:a. Larger sample sizes produce greater sampling errorb. Larger sample sizes produce greater margin of errorc. Greater sampling error produces greater margin of errord. Sampling error is not related to Margin of Error
5. Find the t values that form the boundaries of the criti- cal region for a two-tailed test with a = .05 for each of the following sample sizes: %3D а. п 3 4 b. n = 15 с. п %3D 24
f. The p-value for this sample = i. Thus, the final conclusion is A. There is insufficient evidence to conclude that the distribution of die rolls is not uniform. B.There is insufficient evidence to conclude that the die rolls are dependent. C.There is sufficient evidence to conclude that the distribution of die rolls is not uniform. D. There is sufficient evidence to conclude that the die rolls are dependent.
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Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.95, o=9.3, and E= 1