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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.
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
If the decision in the hypothesis test of population correlation is to reject the null hypothesis, what can we conclude about the population correlation.
Find the probability that he will answer all 10 questions correctly.
This distribution is positively skewed. The standard deviation of the population is not known.
Use this information to make a 95% confidence interval to evaluate true average number of copies made each day at this company.
Suppose we drew a histogram of these 18 death rates using class intervals 1 — 1.9, 2 — 2.9, 3 — 3.9, 4 — 4.9 and 5 — 5.9. Using the histogram, we would
Find out the probability
At the 0.05 level of significance, can we conclude Middletown students remained in their districts less time than Brockton students? Make use of 5-step hypothesis testing procedure.
Find out the value of test statistic utilizing one sample proportion testing. Use the subsequent information for the below questions.
A school administrator randomly selects 12 classes from your school and then selects all of the students of those classes to study a school library issue. Which type of sampling design is being used.
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.
The remaining 5 were not given the overview. Here are the scores for students in each group:
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