For a particular process that is in good statistical control, the mean range value, Rbar, is 0.516. Calculate the estimate for the population standard deviation (the Shewhart standard deviation) if the sample size is 3.   I cannot figure this problem out for the life of me, here are the answer choices 0.266   0.273   0.295   0.305   0.314   0.328   0.351   0.377

For men heights are normally distributed with a mean of 69 inches and a standard deviation of 2.8 inches. If samples of 25 men are selected at random from the population, would the average height found for each sample be more or less varied than the individual measurements taken for each man?B

You take random sample of 200 people from Salinas and find that their average income is $48, 000 per ssalazar@stuce X year with a standard deviation of $9000. Also assume that population incomes are normally Email om sampile of 200 distributed. om sangle cf 200 X Approximately how many people make between $39,000 and $57,000? Uplead on sanple cf 200 X 200 O Cirf-I Answer format: Enter a positive integer Text

Suppose the weights of 3-month-old babies are normally distributed—baby boys with a mean of 14.2 pounds and a standard deviation of 1.9, and baby girls with a mean of 12.8 pounds and a standard deviation of 1.9. What proportion of 3-month-old baby girls will weigh between 12 and 13 pounds? (Round your answer to four decimal places.)   Answer:__________________     You may need to use the appropriate appendix table to answer this question.

You may need to use the appropriate appendix table or technology to answer this question. Money reports that the average annual cost of the first year of owning and caring for a large dog in 2017 is $1,448. The Irish Red and White Setter Association of America has requested a study to estimate the annual first-year cost for owners of this breed. A sample of 50 will be used. Based on past studies, the population standard deviation is assumed known with o = $245. 1,902 2,042 1,936 1,817 1,504 1,572 1,532 1,907 1,882 2,153 1,945 1,335 2,006 1,516 1,839 1,739 1,456 1,958 1,934 2,094 1,739 1,434 1,667 1,679 1,736 1,670 1,770 2,052 1,379 1,939 1,854 1,913 2,163 1,737 1,888 1,737 2,230 2,131 1,813 2,118 1,978 2,166 1,482 1,700 1,679 2,060 1,683 1,850 2,232 2,294 (a) What is the margin of error for a 95% confidence interval of the mean cost in dollars of the first year of owning and caring for this breed? (Round your answer to nearest cent.) (b) The DATAfile Setters contains data collected…

A population of N = 5 scores has a mean of u = 20 and a standard deviation of o = 4. Which of the following is the correct Interpretation of the standard deviation? O The average distance of scores from the mean of p- 20 is 5 points. O The average distance of scores from the mean of u = 20 is 1 point. The average distance of scores from the mean of u = 20 is 4 points. O The average squared distance of scores from the mean of u = 20 is 4 points.

For the following dataset, you are interested to determine the "spread" of the data. Would you employ calculations for the sample standard deviation, or population standard deviation for this dataset: The weight of each apple in a shipment of 1000 apples.

i need help solving this homework question: the lengths of nails (in millimeters) at a certain plant are normally distributed with a mean of 20.00 and a standard deviation of 0.21. nails produced will be rejected unless their lengths are between 19.71 mm and 20.42 mm. what percent of the nails are accepted?

Consider the data from the Anthropology 105 class.  The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?

Based on data from a​ college, scores on a certain test are normally distributed with a mean of 1531 and a standard deviation of 324. Complete parts​ below. c. Find the percentage of scores between 1369 and 1661.