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Probability based on a random experiment.
Your stock drawer has 18 folded pairs of stocks, with 8 pairs of white, 6 pairs of black, and 4 pairs of blue. What is the probability, without looking in the drawer, that you will first select and remove a black pair, then select either blue or a white pair?
Set up hypotheses and carry out all relevant tests. Describe all results and implications which you have discovered.
Explain why the t distribution is used as a part of the confidence interval.
An educational study utilizes a simple pre post design to assess the efficacy of a computer tutor for solving inequalities.
The best estimator or appreciative of the population proportion is 0.45. How large must the sample be?
Assuming we can verify that the data set is approximately normally distributed, what percentage of times will the server be down less than 24 minutes?
Do 1-sample t-test to see if people in Chicago have travelled to fewer states than people nationwide. Utilize the 10% (.10) level of significance.
Carry out the ANOVA and, if essential, post-hoc comparisons. Make a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
What extremely important characteristic of the data set is not considered in the hypothesis test?
What does central limit theorem say about distribution of John's average payoff after 365 bets in a year?
We want to test the hypothesis that the population variances are equal.
At the 10% level of significance, is there sufficient evidence to indicate that more books are being loaned out per day, on the average?
A busy landscaping supplies company sells wood chips for garden mulch. The mulch is sold by the cubic metre and delivered to households in a small truck.
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