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Suppose that the heights of adult women in the United States are normally distributed with a mean of 65 inches and a standard deviationof 2.5 inches. Jennifer is taller than 85% of the population of U.S. women. How tall (in inches) is Jennifer? Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
Constructing a Pareto chart. Comparisons are easier if you order the bars in a bar graph by height.- Make a Pareto chart. Which stage of the painting process should we look at first?
a box contains six tickets labeled with the numbers 1 4 8 15 15 15. the normal approximation to the chance that the sum
Election poll reported that applicant had n approval rating 31% with margin of error E of 4%. Create a confidence interval for proportion of adults who approved of applicant.
the allowed fee for wedding services is 425. one ceremony provider is suspected of charging more than the allowed
the mental development index mdi of the bayley scales of infant development is a standardized measure used in
use statdisk excel or other tools to randomly generate data from a normally distributed population with a given mean
Given the hypothesis Ho: u=400, you conduct a sample of 12 observations and obtain a sample mean of 407 and a sample standard deviation of 6. Using a .01 significance level to test to see if you would reject Ho, what would be the value of your cri..
A local radio station is interested in estimating the percentage of a target market that has a favorable impression of its morning show. Determine the margin of error in the pilot sample. Assume a confidence level of 98%
a scientist attempts to perform a difficult experiment. she is successful in about 80 of her attempts. she attempts the
Compute (by hand) the N, Mean, Standard Deviation, Confidence Interval, and Z score for the variables "company market rate" and "accounting rate" respectively in the AccRet.txt dataset
Develop a seasonally adjusted forecast model for these sandwich sales data. Forecast demand for each season for 2004 using a linear trend line estimate for sales in 2004. Do the data appear to have a seasonal pattern?
what is the probability that a single fisherman's catch is less than 31.5 pounds? what is the probability that the sample of 30 fisherman's average catch is less than 31.5 pounds?
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