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Question: Assume that the population is 0.55. Compute the standard error of the sample proportion for the following sample sizes:
a. 100
b. 200
c. 500
d. 1000
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6 What is the vari..
A local consultant randomly selects a sample of 36 meals whose mean price is determined to be $8.75. Assuming that σ = $0.75, calculate a 95% confidence interval for the population mean price.
What percent of trucks logged more than 57,060 but less than 58,280 miles? What percent of Fords travelled 62,000 miles or less in the year?
Find out the expected shape of distribution of sample mean?
With this important detail, are there any significant differences with LSD?
Mark makes it a policy not to buy bananas unless the price is 33 cents or less per pound. What proportion of the time would he buy bananas?
Comparing the results from (a) and (e), what happens to the required sample size when we increase the confidence level?
Use expected collision claim amount to find out the collision insurance premium that would permit the company to break even on collision portion of policy.
What is the relationship between descriptive statistics and Affirmative Action ? Can using probability in market trending decisions lead to a bad decision? Explain?
A comparison group consisted of 5,055 children who had received no such treatment (brothers and sisters of the children who had received radiation treatment).
Can we conclude that mean time for game is less than 3.50 hours? Use.05 significance level.
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