Reference no: EM131050590
1. Assuming x is normally distributed, use the following information to compute a 90% confidence interval to estimate.
| 313 |
320 |
319 |
340 |
325 |
310 |
| 321 |
329 |
317 |
311 |
307 |
318 |
(Round the answers to 2 decimal places.)
≤μ≤
2. 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 |
2 |
1
|
6 |
3 |
4 |
3 |
3 |
5 |
2 |
3 |
2 |
| 3 |
5 |
4 |
3 |
5 |
3 |
|
Use these data and a population standard deviation of 1.13 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 ≤
3. Suppose a random sample of size 64 is drawn from a population with a mean of 277. If 86% of the time the sample mean is less than 280, what is the population standard deviation?
(Round your answer to 2 decimal places.)
4. Suppose a subdivision on the southwest side of Denver, Colorado, contains 1,700 houses. The subdivision was built in 1983. A sample of 110 houses is selected randomly and evaluated by an appraiser. If the mean appraised value of a house in this subdivision for all houses is $229,000, with a standard deviation of $8,500, what is the probability that the sample average is greater than $230,500?
(Round the values of z to 2 decimal places. Round your answer to 4 decimal places.)
|
Difference between coke and new coke
: What are the null and alternative hypothesis? What is the decision rule or at what value would you reject H0? What is the calculated test statistic?
|
|
Explain how you would overcome potential barriers
: Identify two potential barriers that could occur in your communication scenario and then explain how you would overcome them. Write your answer(s) below.
|
|
Following information to complete phillip
: Use the following information to complete Phillip and Claire Dunphy's 2015 federal income tax return. If information is missing, use reasonable assumptions to fill in the gaps. Ignore the alternative minimum tax for this problem.
|
|
Five-part experiment
: You flip four 2-sided coins and roll one 6-sided die. How many unique outcomes are there for this five-part experiment? Compute an exact answer?
|
|
Confidence interval to estimate
: Assuming x is normally distributed, use the following information to compute a 90% confidence interval to estimate.
|
|
Relationship between gender and book-type preferences
: A book publisher wants to know if there is a relationship between gender and book-type preferences in recreational readers. Recreational readers in a simple random sample were asked if they prefer reading mysteries, romance novels, or self-help bo..
|
|
Revised probability that the selected car
: A man owns 2 cars. One is old and unreliable. It fails to turn on 35% of the time when he tries to use it. The other car is newer and much more reliable. It fails to turn on just 1% of the time he tries to use it.
|
|
Tested under a special condition
: An experiment involves 17 participants. From these, a group of 5 participants is to be tested under a special condition. How many groups of 5 participants can be chosen, assuming that the order in which the participants are chosen is irrelevant?
|
|
Develop a business plan for the organization
: Business planning is a mapping of your vision for the future of an organization. As a health care administrator, it is important that you are able to create an effective business plan. For this Assignment, you examine the following scenario and de..
|