Question

A community health association is interested in estimating the average number of maternity days women stay...

A community health association is interested in estimating the average number of maternity days women stay in the local hospital. A random sample is taken of 36 women who had babies in the hospital during the past year. The following numbers of maternity days each woman was in the hospital are rounded to the nearest day.

4 3 4 3 2 5 3 1 4 3
4 2 3 5 3 2 4 3 2 4
1 6 3 4 3 3 5 2 3 4
3 5 4 3 5 1


Use these data and a population standard deviation of 1.11 to construct a 98% confidence interval to estimate the average maternity stay in the hospital for all women who have babies in this hospital.



(Round the intermediate values to 3 decimal places. Round your answers to 3 decimal places.)

μ

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A community health association is interested in estimating the average number of maternity days women stay...
A community health association is interested in estimating the average number of maternity days women stay in the local hospital. A random sample is taken of 36 women who had babies in the hospital during the past year. The following numbers of maternity days each woman was in the hospital are rounded to the nearest day. 5 3 4 3 2 5 3 1 4 3 4 2 3 5 3 2 4 3 2 2 1 6 3 4...
A community health association is interested in estimating the average number of maternity days women stay...
A community health association is interested in estimating the average number of maternity days women stay in the local hospital. A random sample is taken of 36 women who had babies in the hospital during the past year. The following numbers of maternity days each woman was in the hospital are rounded to the nearest day. 1 3 4 3 2 5 3 1 4 3 4 2 3 5 3 2 4 3 2 4 1 6 3 4...
The average length of a maternity stay in a U.S. hospital is said to be 2.4...
The average length of a maternity stay in a U.S. hospital is said to be 2.4 days with a standard deviation of 0.9 days. Suppose 50 women who recently bore children in a U.S. hospital are randomly surveyed. Assume length of stay is normally distributed. 8. In words, X = 9. X ~ _____(_____,_____) 10. In words X-bar is: 11. _____ ~ _____(_________,________)   (round sd to 2 decimal places) 12. Find the probability that a randomly selected woman stays in...
The length of maternity stay in U.S. hospitals is normally distributed, with mean of 2.5 days...
The length of maternity stay in U.S. hospitals is normally distributed, with mean of 2.5 days and a standard deviation of 1.1 days. We randomly survey 92 women who recently bore children in U.S. hospitals. Let X= maternity stay in U.S. hospital, and X¯= average maternity stay for a sample of size 92 .   X∼ (pick one)PBEN ( , ) .   X¯∼ (pick one)PBEN ( , ) .    What is the probability that the average stay is more than...
You are interested in finding a 98% confidence interval for the average number of days of...
You are interested in finding a 98% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 15 randomly selected college students. 11 5 3 7 12 4 11 9 4 4 2 4 5 9 9 a. To compute the confidence interval use a t Correct distribution. b. With 98% confidence the population meannumber of days of class that college students miss is...
You are interested in finding a 98% confidence interval for the average number of days of...
You are interested in finding a 98% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 10 randomly selected college students. Round answers to 3 decimal places where possible. 2 0 10 7 11 1 3 11 2 0 a. To compute the confidence interval use a ? t z  distribution. b. With 98% confidence the population mean number of days of class that...
A medical researcher wants to determine if the average hospital stay of patients that undergo a...
A medical researcher wants to determine if the average hospital stay of patients that undergo a certain procedure is greater than 9.1 days. The hypotheses for this scenario are as follows: Null Hypothesis: μ ≤ 9.1, Alternative Hypothesis: μ > 9.1. If the researcher takes a random sample of patients and calculates a p-value of 0.2003 based on the data, what is the appropriate conclusion? Conclude at the 5% level of significance. Question 5 options: 1) The true average hospital...
Mammoth Cave National Park is interested in estimating the average number of visitors to their park...
Mammoth Cave National Park is interested in estimating the average number of visitors to their park each year. To do this, they have provided us with a sample of 120 days and the number of visitors who entered the park on those days. A summary obtained from StatCrunch is given on the output page. Use the output provided to describe the distribution: The distribution of daily visitors to Mammoth Cave is Select an answer normal uniform bimodal left-skewed right-skewed  . The...
Suppose that the average length of stay in a U.S. hospital is approximately normally distributed and...
Suppose that the average length of stay in a U.S. hospital is approximately normally distributed and said to be 2.4 days with a standard deviation of 0.9 days. We randomly survey 80 women who recently bore children in a U.S. hospital. Which is more likely to occur: An individual stayed more than 3 days. The average stay of 80 women was more than three days. Please explain your choice. Use terms discussed in Unit 2: Central Limit Theorem, standard deviation,...
A medical researcher wants to determine if the average hospital stay after a certain procedure is...
A medical researcher wants to determine if the average hospital stay after a certain procedure is greater than 12.41 days. The hypotheses for this scenario are as follows: Null Hypothesis: μ ≤ 12.41, Alternative Hypothesis: μ > 12.41. If the researcher randomly samples 22 patients that underwent the procedure and determines their average hospital stay was 14.93 days with a standard deviation of 6.108 days, what is the test statistic and p-value of this test? Question 2 options: 1) Test...