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Use n=9, and p=0.8 to complete parts (a) through (c) below
(a) Find the probabilities and construct a binomial probability distribution with the given parameters.
(b) Compute the mean and standard deviation of the random variable.
(c) Draw the probability histogram, comment on its shape, and label the mean the mean on the histogram.
A standard deviation of about $9000. Approximately what percentage of household incomes in this state is between $27,000 to $63,000/year? Show all work as to how this is obtained.
The use of linear regression is a critical tool for a manager's decision-making ability. Please carefully read the example below and try to answer the questions in terms of the problem context.
what is the equation that predicts mortgage amount from interest rate? Compute the slope of the straight line. compute the y-intercept of the straight line.
If and are the proportions of all college males and females correspondingly, who worked last summer, the z statistic (±0.01) for a test comparing the proportions of college men and women who worked last summer is??
Draw the graph of the regression line on the same plot as the scatter diagram above.
Test the null hypothesis that the telephone survey technique has a probability of selecting a household with no children that is equal to the value obtained by the census.
Proportion of college students who prefer drink A: (0.384, 0.424). Identify the point estimate for estimating the true proportion of college students who prefer that drink.
This sample for the proportion of the population that would favor a recount. What is the Point Estimate for the proportion of the population that would favor a recount?
Find a 90% confidence interval for the population mean salary of such personnel. What is the margin of error.
How much money would a Western household have to spend on groceries per year in order to be at the 99th percentile?
At the 0.10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. would it be unusual
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