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A May 2007 Gallup Poll found that only 11% of a random sample of 1003 adults approved of attempts to clone a human.
Find the margin of error for 95% confidence.
A) 0.016
B) 0.019
C) 0.038
D) 0.032
The F test is used in Analysis of Variance (ANOVA). When would a researcher use an ANOVA? Explain (one paragraph in length).
They wish to conduct a survey of their students and find a simple random sample of 50 Freshmen, 40 Sophomores, 35 Juniors, and 30 Seniors.
Based on this, compute a 99% confidence interval for the proportion of all letters mailed in the United States that were delivered the day after they were mailed.
A financial planner wants to compare the yield of income and growth mutual funds. Fifty thousand dollars is invested in each of a sample of 35 income and 40 growth funds
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suppose that x1...xn form a random sample from a normal distribution with meanu u pronounced mu and variance1.a write
when testing a claim about a population mean with ? known either or both of these conditions is satisfied the
in a study investigating the effect of car speed on accident severity 5000 reports of fatal automobile accidents were
1. a poll found that in a random sample of 1000 american adults 720 indicated that they oppose the reinstatement of a
A school only accepts students with the top 20% of sat scores. The sat has a mean of 500 and a standard deviation of 100. what actual score should be used as the cut-off score?
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