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Descriptive statistic results from quarterly sales figures over a 18 year period (73 qtr) are below. Please interpret the standard Deviation and Median in terms of sales results, so I can explain the sales in written form.
Find the mean, median, mode, and midrange for these data.
One advantage of the repeated measures ANOVA is that it eliminates "individual differences" as a source of variability. Explain why there are no individual differences in the numerator and in the denominator of the F ratio.
Set up null hypothesis for associated F test.
Is there any reasonable explanation for the two months that have the highest frequencies?
When the names of all the students at Omega University were dropped to a fishbowl, they would include:
The margin of error for a 95% confidence interval estimate for the proportion of all students with cell phones is
For the following cases, determine whether the sampling is dependent or independent. Explain your conclusion.
Make a decision using the p-value approach at the given α = 0.05.
Probability using normal distribution.Sampling distributions. Given a normal distribution with μ = 50 and standard deviation σ = 9, if a sample of n = 100 is selected.
20% of teenagers in a small town say they like reading news online. Suppose you randomly select 7 teenagers from the town and ask them whether or not they enjoy reading news online. Find the probability that at least 3 say they enjoy reading news ..
Findout the margin of error for this survey if we want a 99 percent confidence in our estimate of the percent of adults over 50 who take vitamin supplements.
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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