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In a survey of 1,732 ?executives, it was found that 53?% of them said that if they could start their careers? again, they would choose a different field. The margin of error was 3 percentage points.
Briefly describe the sample statistic for the study. Choose the correct answer below.
A. 3 percentage points
B. 47?%
C. The ,732 executives selected for the survey
D. 53?%
a. Conduct a test of hypothesis to determine whether the mean salary of the teams was different from $80.0 million. Use the .05 significance level.
consider the following summary data on the modulus of elasticity times106 psi for lumber of three different grades in
Based on probability you calculated in part a, would you conclude that more than 30 percent of Americans (18 years or older) say that figure skating is their favorite Winter Olympic event?
According to the Central Limit Theorem, what is the standard error of the mean?
Put your answers in decimal form rounded to 3 decimal places.
If the average income for workers in Canada (in 2010) is 32,200 CAD and the standard deviation is 47,000 CAD. What does this say about the distribution (of income)? Is it normally distributed? Why or why not? What conclusion can you make from this..
Homework - Conditional Probability & Bayesian Analysis - What does it mean for two events to be mutually exclusive
Suppose that you live in a city that has 125,000 households with telephones and a polling organization randomly selects 1000 of them to phone for a survey.
The null hypotheseis it true? Sketch the density curve of the sampling distribution. Be sure to locate mean and standard deviationn correctly.
a. the probability that exactly 20 items will be scanned incorrectly from the next 5,000 items scanned b. the probability that more than 20 items will be scanned incorrectly from the next 5,000 items scanned c. the probability that the number of item..
a researcher wants to compare how college graduates and college drop-outs feel about the legalization of marijuana. she
the probability that a household is both prosperous and educated is P (A and B) = 0.082. What is the probability P (A or B) that the household selected is either prosperous or educated.
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