Question

In: Statistics and Probability

A recent health report revealed that a woman with insurance spends an average of 2.3 days...

A recent health report revealed that a woman with insurance spends an average of 2.3 days in the hospital following a routine childbirth, while a woman without insurance spends an average of 1.9 days at the hospital. Two samples of 16 women each were used in both samples. The standard deviation of the first sample is equal to 0.6 day, and the standard deviation of the second sample is 0.3 day. At ?=0.01, test the claim that the means are equal. Find the 99% confidence interval for the differences of the means and compare the result of the hypothesis test to the one for the confidence interval.

Solutions

Expert Solution


Related Solutions

A small business pays health insurance for its employees. According to a recent estimate, the average...
A small business pays health insurance for its employees. According to a recent estimate, the average cost that employers pay for health insurance is μ= $4000 per year for a single employee in this industry. The manager of the small business is concerned that their costs are significantly different than the industry average. Data from a sample of employees is used. Use data from "insurance" in Excel sheet provided to run the appropriate statistical test. Use α=0.01 . What do...
A small business pays health insurance for its employees. According to a recent estimate, the average...
A small business pays health insurance for its employees. According to a recent estimate, the average cost that employers pay for health insurance is μ= $4000 per year for a single employee in this industry. The manager of the small business is concerned that their costs are significantly different than the industry average. Data from a sample of employees is used. Does this small business pay more or less than the average business in their industry? How much more or...
It has been determined that an agent of S.H.I.E.L.D. spends an average of 108 days per...
It has been determined that an agent of S.H.I.E.L.D. spends an average of 108 days per year identifying potential threats to human existence, with a standard deviation of 13.5 days. A random sample of 36 S.H.I.E.L.D. agents is taken. a. What is the probability that the sample will have a mean of less than 105 days? b. What is the probability that the sample will have a mean of more than 110 days? c. What is the probability that the...
According to a Human Resources report, a worker in the industrial countries spends on average 419...
According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Suppose the standard deviation of time spent on the job is 28 minutes. a. If the distribution of time spent on the job is approximately bell shaped, between what two times would 68% of the figures be? enter the lower limit for the interval where 68% of the values would fall 391 to enter the upper limit for...
According to a Human Resources report, a worker in the industrial countries spends on average 419...
According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Suppose the standard deviation of time spent on the job is 25 minutes. a. If the distribution of time spent on the job is approximately bell shaped, between what two times would 68% of the figures be? enter the lower limit for the interval where 68% of the values would fall  to enter the upper limit for the interval...
Germany has health insurance coverage approximating 100% of the population and spends far less on health...
Germany has health insurance coverage approximating 100% of the population and spends far less on health care both in absolute terms and relative to GDP. What lessons, if any, could the US learn from Germany to extend health insurance coverage and lower costs? Use as much economic theory/analysis as possible
Germany has health insurance coverage approximating 100% of the population and spends far less on health...
Germany has health insurance coverage approximating 100% of the population and spends far less on health care both in absolute terms and relative to GDP. What lessons, if any, could the US learn from Germany to extend health insurance coverage and lower costs? Use as much economic theory/analysis as possible
C) A recent report in Pasadena Times indicated a typical family of four spends $490 per...
C) A recent report in Pasadena Times indicated a typical family of four spends $490 per month on food. Assume the distribution of food expenditures for a family follows the normal distribution, with a standard deviation of $90 per month. What percent of the families spend between $300 and $490 per month on food? What is the probability that a families selected spends less than $430 per month on food? What percent spend between $430 and $600 per month on...
1.According to a Human Resources report, a worker in the industrial countries spends on average 419...
1.According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Suppose the standard deviation of time spent on the job is 27 minutes. a. If the distribution of time spent on the job is approximately bell shaped, between what two times would 68% of the figures be? enter the lower limit for the interval where 68% of the values would fall  to enter the upper limit for the interval...
According to the recent survey conducted by Sunny Travel Agency, a married couple spends an average...
According to the recent survey conducted by Sunny Travel Agency, a married couple spends an average of $500 per day while on vacation. Suppose a sample of 64 couples vacationing at the Resort XYZ resulted in a sample mean of $490 per day and a sample standard deviation of $100. Develop a 95% confidence interval estimate of the mean amount spent per day by a couple of couples vacationing at the Resort XYZ.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT