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a.Suppose we are sampling from a N(μ,144) distribution. How large must n be so that a 90% CI for μ has length (left endpoint to right endpoint) equal to 0.5?
b.In the same situation as (a), suppose instead that σ2 = 100. Would the required n go up or down?
The budgeting process for a Midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Since the actual expenses are unknown, the following respective probabilities are assigned: .3, .2, .25..
Assuming that the odds ratios for the two groups, those with zero or one partner and those with two or more partners, are equal (in other words, the number of partners is not an effect modifier), calculate the Mantel-Haenszel estimate of this comm..
Calculate confidence intervals around the P and Q percentages using the following sample data: a. P = 75% , Q = 25% n= 678 @ 95% level of confidence b. P = 75%, Q = 25% n= 35 @ 95% level of confidence
items produced by a manufacturing process are supposed to weigh 90 grams. the manufacturing process however is such
question a national study has determined that people who work full time average 43.4 hours worked per week.assume that
a producer can produce a product at a variable cost per unit of 9. the producer can sell the product for 12 each. if
This booth will cost $9,000. Sales are expected to be $3,600 per year for the next 3 years. After the three years, the value is expected to be zero.
Find the line of best fit and graph it on the scatterplot. State the equation of the line - State the slope of the line of best fit. Carefully interpret the meaning of the slope in a sentence or two
A market research company surveyed consumers to determine their ranked preferences of energy drinks among the brands Monster, Red Bull, and Rockstar.
Write-up of 1 to 2 page or an essay for the following questions. What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test.
It indicates that about 10% to 11% of the population of Europe and North America is left handed. It also reports on demographic surveys.
Given the following sample information, test the hypothesis that the treatment means are equal at the .05 significance level.
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