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An insurance company recently conducted a survey of citizens over 60 years of age whose net worth is too high to qualify for Medicaid and have no private health insurance. The ages of 25 uninsured senior citizens were as follows:
60 61 62 63 64 65 66 68 68 69 70 73 73 74 75 76 76 81 81 82 86 87 89 90 92
a) calculate the arithmetic mean age of the uninsured senior citizens to the nearest hundredth of a yearb) identify the median age of the uninsured senior citizensc) identify the first quartile of the ages of the uninsured senior citizensd) identify which if the following is the correct statement1) one fourth of the senior citizens sampled are below 65.5 years of age2) the middle 50% of the senior citizens sampled are between 65.5 and 73.0 years of age3) the average age of senior citizens sampled is 73.5 years of age4) all of the above are correcte) calculate the standard deviation of the ages of the uninsured senior citizens correct to the nearest hundredth of a year.
Determining whether or not the proportion of the population in favor of Candidate A is significantly more than 80%. The value of the test statistic and the p-value respectively are?
According to the regional bar assoc., 60% of people who take the bar exam pass. Find the approximate probability that at least 61% of 200 randomly selected people taking the bar will pass. Round to three decimal places as needed.
The following data represent the number of weed-eaters sold per month at a local garden shop and their prices
Estimated sales resulting from a $15,000 investment in inventory and an advertising budget of $10,000. Interpret b1 and b2 in this estimated regression equation.
A commuter travels many miles to work each morning. She has timed this trip 5 times throughout the last month. The time (in minutes) required to make this trip was 44, 39, 41, 35, and 41.
The consultant has offered to share their analysis with your company for a fee of $25.0 million. What is the Expected Value of Perfect Information in this scenario?
The correlation between IQ and the verbal SAT score among the seniors at GWB High School is .90; it is significant. The mean IQ is 100 with a standard deviation of 10.
Project was estimated by using ADM/PERT analysis. Due to extensive length of project many activities were combined; Following is the result.
In each of the following scenarios, which would be larger, the mean or median, or would the mean and median be about the same? Provide reasoning--think about the shape of the histogram for the data and how the shape would affect the relationship b..
According to the Chebyshev rule, at least what percentage of the observation in any data set are contained within a distance of 3 standard deviations around the mean.
Observations was x ¯ = 119.8 (actually 119.7692), and the 14th observation, somewhat of an outlier, was 158. What is the value of x ¯ for the entire sample?
You were hired to do the development work for the local high school. The school has asked you to create a program to store quiz grades for the students of a class.
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