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Owens Orchards sells apples in a large bag by weight. A sample of seven bags contained the following numbers of apples:
23, 19, 26, 17, 21, 24, 22.
1. Compute the mean number and median number of apples in a bag.
2. Verify that S (X - X) = 0.
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
Let independent variable x represent years since 1950. Determine quadratic regression model for per capita cigarette consumption.
Provide a discussion that supports the assumption that the variance of savings increases with family income.
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Based on this sample information, create a 90% confidence interval for population mean yearly premium.
Set-up/solve the problem graphically. (How many ceiling fans and how many floor fans should be made?)
The researcher computes the sum of squares for groups as SSG = 40030 and the sum of squares for error as SSE = 414780. The numerical value of the ANOVA F statistic is
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
The population of IQ scores forms a normal distribution with mean of μ = 100 and a standard deviation of σ = 15. What is the probability of obtaining a sample mean greater than M = 105,
Choosing the appropriate the sampling design for the given data
Which of the following events are disjoint and What proportion of the females rated their intelligence less than 7.
Find a 95% confidence interval for the difference in the proportion of deaths between the streptokinase and the control group.
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