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Assuming that the population is normally distributed, construct a 95% confidence interval estimate for the population mean for each of the following samples: Sample A: 1 1 1 1 8 8 8 8. Sample B: 1 2 3 4 5 6 7 8. Explain why these two samples produce different confident intervals even though they have the same mean and range.
one important use of regression line is to do which of the following?a. to determine the strength of a linear
To guarantee that cans of soda are properly filled, some cans are sampled and the amounts measured. The overall average for the samples is 12 ounces.
13.1: Fitting a straight line to a set of data yields the following prediction line:
a retail establishment accepts either the american credit card or visa credit card. a total of 30 of its customers
Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval and what is the probability that for the second sample, the mean commute distance will be less than 29.6 miles?
The grades have a bell-shaped distribution. Based on this information, which one of the following is the best estimate of the number of students with grades between 55 and 83?
what is the probability that the sample mean will be at least 1000? Do you need to use the central limit theorism to answer this question? explain.
deliverable length 2 - 3 pages in ms worddescribe a situation in your business or personal life that required research.
suppose a point xy is chosen at random from the disk x2 y2 lt 1. find a the marginal density of x and b the
Within distribution of scores, measures of dispersion give an indication of?
What is the value of z score required for a 70% confidence interval?
you have constructed a standardized least-squares regression line to explore how hours worked and stress influence
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