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Given a normal distribution with μ = 50 and σ = 5, if you select a sample of n = 100:
a. What is the probability that X_is:
i. less than 47?
ii. between 47 and 49.5?
iii. above 51.1?
b. There is a 35% chance that X_ is above what value?
They decide to adopt the plan on a 2-year trial basis and use the data they collect to make a decision about continuing the tax breaks.
Construct a box and whisker plot. Does this plot indicate that extreme values (outliers) may be inflating the measures of spread calculated in part a?
You've probably heard that "you are what you eat," but did it ever occur to you that you might be who you are because of what your mother ate?
A) What is the width of the 95% confidence interval for estimating the difference between the mean duration of symptoms in the two groups?
A regression equation was computed to be Y= = 35 + 6X. The value of the 35 indicates that:
The New York Times recently reported that 60% of college entrants into elite public and private colleges in the U.S. have parents that earn over $150,000/yr.
the joint distribution of a proportion of votes for candidate x and a proportion of votes for candidate y is given by
based on a study of heights of men and women who played basketball a researcher concludes that the exercise from
What size sample would be required to estimate the proportion of hospital referrals with a margin of error of 0.04 or less at 95% confidence?
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
Construct a 95?% confidence interval for the true percentage of students who want MATH533 next session.
Describe the financial environment at Genesis. Describe how the company's strategy for financing as a startup may no longer be suitable as it seeks to expand its operations globally.
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