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A researcher tested the reading ability of two groups of primary care patients. The scores on the test range from 1 to 9 with 9 indicating a high degree of reading ability and 1 very limited reading ability. The researcher is interested in knowing the average level of reading ability for each group separately and for the sample as a whole. Calculate these indices using appropriate statistics, provide a rationale for the ones you chose to use and provide an interpretation of the results.
Group 1: 4, 8, 6, 6, 2, 1, 7, 3, 4, 3
Group 2: 5, 8, 7, 2, 4, 5, 2, 9
A basketball player shoots 8 free throws during a game. If we assume that each attempt has the same probability of success, the sample space for the number of baskets he/she makes during the game is ??
Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.
Find out the following: Mean swipe rate, Standard deviation of the swipe rate.
On average a certain intersection results in 3 traffic accidents per month. What is the probability that for any given month at this intersection
The data below show the average daily high temperature for Chicago, Illinois, for twelve recent spring and summer months. Construct a stem-and-leaf diagram for the data:
Is there a difference in the extent of wound healing by treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance.
At the significance level 0.01 is there sufficient evidence to conclude that a difference exists in the mean time required for the elimination of the rash?
Using this information, calculate Blpha risk (probability of Type II error) if the true population mean really is 79.
What is the probability that he completed the assignments?
Determine percentage of employees has 5 dependents? Of all employees which have at least one dependent, determine percentage has more than one?
At the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .035, the appropriate conclusion would be:
Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness. 56% of respondents said they balance their checkbook at least once a month.
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