A statistical research yields to the sampleproportion of a certain feature in a certaincommunity be 0.56. Find the required samplesize for a maximum margin of error of 0.05for a 90% confidence interval.O a. 211O b. 266O c.276O d.267

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Answered: A statistical research yields 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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A. 1.5 В. 2.5 С. 3.5 D. 4.5 19. A population has mean u = 57 and standard deviation o = 6. Find the data location r which has z-score z = 14.5 for this population. А. 142 В. 144 С. 146 D. 148 20. A sample has mean 7 = 41 and standard deviotion o
The pulse rates of 149 randomly selected adult males vary from a low of 40 bpm to a high of 116 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 90% confidence that the sample mean is within 2 bpm of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate o. n= (Round up to the nearest whole number as needed.) b. Assume that o = 10.1 bpm, based on the value s = 10.1 bpm from the sample of 149 male pulse rates. n= (Round up to the nearest whole number as needed.) c. Compare the results from parts (a) and (b). Which result is likely to be better? The result from part (a) is the result from part (b). The result from because is likely to be better
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A sample of 225 elements from a population with a standard deviation of 60 is selected. The sample mean is 190. Find the 98% confidence interval for u. 180.695 to 199.305 181.8 to 198.2 O 185 to 195 O 130 to 250
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2. A random sample of 10 items is taken from a normal population. The sample had a mean of 82 and a standard deviation is 26. Which is the appropriate 99% confidence interval for the population mean? a. 82±zo0os (26) b. 82±to00s (26) c. 82±zo01 26 d. 82±fo00s 10 26 е. none of the above
The pulse rates of 152 randomly selected adult males vary from a low of 40 bpm to a high of 104 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 98% confidence that the sample mean is within 3 bpm of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate o. n3= (Round up to the nearest whole number as needed.)
The pulse rates of 167 randomly selected adult males vary from a low of 40 bpm to a high of 104 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 99% confidence that the sample mean is within 2 bpm of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate o. n = (Round up to the nearest whole number as needed.) b. Assume that o = 11.2 bpm, based on the value s = 11.2 bpm from the sample of 167 male pulse rates. n= (Round up to the nearest whole number as needed.) c. Compare the results from parts (a) and (b). Which result is likely to be better? The result from part (a) is the result from part (b). The result from is likely to be better because
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A statistical research yields to the sample proportion of a certain feature in a certain community be 0.56. Find the required sample size for a maximum margin of error of 0.05 for a 90% confidence interval. O a. 211 O b. 266 276 267 О с. O d.