Question

In: Statistics and Probability

According to a recent study, the number of times a person visits a doctor per year...

According to a recent study, the number of times a person visits a doctor per year follows an approximately normal distribution with a mean of 4.6 visits and a standard deviation of 0.8 visits. A tech company wishes to offer their employees health insurance next year. To find the best health insurance plan, the company randomly selects employees and notes how many times they visited the doctor last year. If the research resulted in a standard error of 0.025 visits, how many employees did they sample?

Solutions

Expert Solution

here as we know that sample size =(standard deviation/stndard error)2

therefore number of employees did they sample =(0.8/0.025)2=1024


Related Solutions

Suppose the administrator of a clinic is interested in the number of visits per person per...
Suppose the administrator of a clinic is interested in the number of visits per person per year for those that are insured. After selecting 15 people the number of visits was recorded as the following: Patient # Annual Number of visits 1 8 2 7 3 7 4 6 5 6 6 5 7 5 8 5 9 4 10 3 11 3 12 2 13 2 14 1 15 1 By using Excel,  data analysis,  five numbers summary, and the Rubric.docx...
Suppose that the quantity demanded of visits to a doctor per year is given by 10X...
Suppose that the quantity demanded of visits to a doctor per year is given by 10X = 120 - (1/2)P   where X is the number of visits and P is the price the patient pays for a visit. How many visits would the patient make if he or she had to pay the full price of a visit, $100? How many visits would a patient make if he or she was insured and had to pay only a 20% co-insurance...
assume that you would like to compare the mean number of hospital visits per person per...
assume that you would like to compare the mean number of hospital visits per person per year between Texas and California.  Specifically you would like to test if Texans have a different mean number of visitations per year per person than Californians.  In order to do this, you take a random sample of 29 Texans and 24 Californians and ask each of them how many times they visited the Emergency room last year.  The average number of visits for the Texans was 1.158...
A A recent study focused on the number of times men and women send a Twitter...
A A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized below. Sample Size Sample Mean Population Standard Deviation   Men 23          18          5                  Women 38          38          21                At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the p-value for this hypothesis...
A recent study stated that if a person chewed gum, the average number of sticks of...
A recent study stated that if a person chewed gum, the average number of sticks of gum he or she chewed daily was 8. Researcher believes the number of sticks is greater. He selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per day was 9. The standard deviation of the population is 1. At α = 0.05 level of significance test the claim that the number of sticks of gum...
A recent study stated that if a person chewed gum, the average number of sticks of...
A recent study stated that if a person chewed gum, the average number of sticks of gum he or she chewed daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per day was 9. The standard deviation of the sample was 1. Use the level of significance of 0.05 , test the claim that the number of sticks of gum a person...
According to a recent study, the mean number of people in a family (a married couple)...
According to a recent study, the mean number of people in a family (a married couple) in Canada is 4.80. A sociologist thinks this may not be the correct value for the city that she lives in. She examines a large apartment complex and interviews 100 randomly selected families (married couples) in the complex and obtains a mean of 4.64 persons per family. It is also known that the population standard deviation, σ, can be assumed to be 0.796. You...
According to a recent study, the mean number of people in a family (a married couple)...
According to a recent study, the mean number of people in a family (a married couple) in Canada is 4.80. A sociologist thinks this may not be the correct value for the city that she lives in. She examines a large apartment complex and interviews 100 randomly selected families (married couples) in the complex and obtains a mean of 4.64 persons per family. It is also known that the population standard deviation, σ, can be assumed to be 0.796. You...
A recent study focused on the number of times men and women send a Twitter message...
A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized below. Sample Size Sample Mean Population Standard Deviation   Men 29          24          9                  Women 37          37          19                At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the p-value for this hypothesis test?...
3. A recent study showed that the average number of sticks of gum a person chews...
3. A recent study showed that the average number of sticks of gum a person chews in a week is 15. A college student believes that the guys in his dormitory chew less gum in a week. He conducts a study and samples 14 of the guys in his dorm and finds that on average they chew 13 sticks of gum in a week with a standard deviation of 3.6. Test the college student's claim at αα=0.01. Since the level...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT