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What percentage of hospitals provides at least some charity care? Based on a random sample of hospital reports from eastern states, the following information was obtained (units in percentage of hospitals providing at least some charity care.
57.1
56.2
53.0
66.1
59.0
64.7
70.1
53.5
78.2
Use a calculator with mean and sample standard deviation keys to verify that x = 62.3% and s = 8.0%. Find a 90% confidence interval for the population average µ of the percentage of hospitals providing at least some charity care.
Calculate a 3-month moving average forecast for months 4 through 9 also Compare the two forecasts by utilizing MAD. Which forecast appears to be more accurate.
Determine the value of the finite population correction factor if population size is 1000 and the sample size is 300? What is the smallest sample size for which finite population correction factor must be Used?
Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?
Compute descriptive statistics for each stock and the S&P 500. Comment on your results. Which stocks are the most volatile? Compute the value of beta for each stock. Which of these stocks would you expect to perform best in an up market? Which..
The average hourly wage of employees of a certain company is $9.83. Assume the variable is normally distributed.
Determine the distributions given below represent a probability distribution. Justify your answer.
Either no change to the Objective function or a raise in the value of the objective function depends on the constraint.
A teacher divides her class into two groups. One group is taught a lesson on the computer and the other is taught by traditional lecture. The teacher then gives a test to see that group has better grades.
Using Sally's estimate of demand that follows, how many T-shirts should she produce for the upcoming event?
If a blue ball is selected you win nothing. Let X be the amount that you win. The expected value of X and let the random variable X be a random number with the uniform density curve given below
Does this result support original claim, or is population percentage considerably less than 45%. Use alpha=.05 for level of significance.
Employer wishes to interview only those applicants who score in top 15%. What must cut-off score be for interviews?
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