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When computing a confidence interval with a sample size of 100 and the confidence interval of the sample size decreases to 80? The confidence interval becomes narrower if the sample size decreases?
The results are = $259.60 and s = $52.00. Give a 95% confidence interval for the average amount of bonus dollars that will be spent by a cardholder.
In Exercise we suggested the model N(1152, 84) for weights in pounds of yearling Angus steers. What weight would you consider to be unusually low for such.
Let X be the cost of the sofa. What is the average cost of a sofa if the advertised sofa is $250 and the more expensive sofa is $ 375?
Can the formal hypothesis testing approach be used for non parametric tests? How are parametric and nonparametric statistics different?
To be from the same population? You may assume the that follows a normal distribution. values are: 2.13 1.31 1.91 1.92 1.77 1.64 2.29 1.99 2.33 2.49 2.22
What is the estimated index of satisfaction for a person who first married at 18, has an annual income of $26,500, has three children living, has assets of $156,000.
For the variables, HOME, ARREST, TENURE and SIBS, identify the correct measure of dispersion and explain why it is appropriate. Locate the values for the measure on the tables and report them for each variable.
A local brewery distributes beer in bottles labeled 32 ounces. A government agency thinks that the brewery is cheating its customers.
A popular soft drink is sold in 2-liter (2,000-milliliter) bottles. Because of variation in the filling process, bottles have a mean of 2,000 milliliters and a standard deviation of 20, normally distributed.
Determine the probability that someone is under 30,- the probability that someone has a high income given that he or she is under 30,
Give a scenario (preferably related to your area of expertise or work experience) in which a judgmental forecasting method would be used. Which particular judgmental forecasting method
a sample of 100 bugs yields an average weigh tof 7.7 ounces. assume the population st.dev is 0.8 oz what is the margin
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