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A survey of adults ages 18-29 found that 82% use the internet. You randomly select 196 adults ages 18-29 and ask them if they use the internet.
a-Find the probability that exactly 159 people say they use the internet.
b-Find the probability that at least 159 people say they use the internet.
c-Find the probability that fewer than 159 people say they use the internet.
d-Are any probabilities unusual? Explain
Sketch the distributions involved, and (c) explain your answers to someone who has never had a course in statistics.
In this problem set you will get some practice performing a linear regression analysis. If you use Statdisk or Excel to perform any portion of these analyses, please include the results, label them, and refer to them accordingly in your interpreta..
Draw and label distribution used and position of values found.
The prior year, the population mean expenditure per household was $632. Discuss the change in holiday season expenditures over the one-year period.
The quality control manager for ENTA Inc. must decide whether to accept (a1), further analyze (a2) or reject (a3) a lot of incoming material. Assume the following payoff table is available.
Solve x^2 = -2 where x is a real number. Simplify your answer as much as possible.
In the survey of 8000 women, 5431 say they change their nail polish once the week. Create the 99% confidence interval for population proportion of women who change their nail polish once a week.
The proportion of adults in the sample, as her estimate of p, the proportion of adults in the pond population. Find using the normal approximation with the continuity correction.
Brief description of the real-world situation or problem you selected to address, the independent and dependent variables you would study
test results from an electronic circuit board indicate that 50 of board failures are caused by assembly defects 30 are
What is probability of selecting 2 families neither had taxes prepared by H&R Block?
Compute the probability of a successful operation (i.e., an operation in which at least one hit is a success) if all 3 missiles are launched and a hit within 40 miles of the target is considered a success.
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