Question

I will leave a rating. Thank you! A) In order to construct a 95% confidence interval...

I will leave a rating. Thank you!

A) In order to construct a 95% confidence interval for the proportion of persons that support a policy under discussion, one student asked 94 people and 36 persons said that they support this policy. Assume that 95% confidence interval is (a, b). What is the value of a?

Round your answer to the nearest 0.01.

B)

It is difficult to pass the exam for a certain certification. In the last year, out of 81 persons who took this exam, only 40 passed it. The 90% confidence interval for the passing rate is (a, b). What is the value of b?

Round your answer to the nearest 0.01.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

----------------------------------------------------------------------------------------------------------

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Use the standard normal distribution or the​ t-distribution to construct a 95% confidence interval for the...
Use the standard normal distribution or the​ t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be​ used, explain why. Interpret the results. In a random sample of fortyone ​people, the mean body mass index​ (BMI) was 27.7 and the standard deviation was 6.24 Which distribution should be used to construct the confidence​ interval? Choose the correct answer below. (Use a t-distribution because the sample is random n>=30, and o is...
In a survey of 2260 ​adults, 708 say they believe in UFOs. Construct a 95% confidence...
In a survey of 2260 ​adults, 708 say they believe in UFOs. Construct a 95% confidence interval for the population proportion of adults who believe in UFOs. A 95% confidence interval for the population proportion is ​(_​,_). ​(Round to three decimal places as​ needed.) Interpret your results. Choose the correct answer below . A. With 95% ​confidence, it can be said that the sample proportion of adults who believe in UFOs is between the endpoints of the given confidence interval....
If n=340 and ˆp=0.65, construct a 95% confidence interval about the population proportion. YOU HAVE TO...
If n=340 and ˆp=0.65, construct a 95% confidence interval about the population proportion. YOU HAVE TO ROUND ANSWER THREE DECIMAL PLACES TO FIND THE ANSWER Preliminary: Is it safe to assume that n≤0.05 of all subjects in the population? Yes No Verify nˆp(1−ˆp)≥10.. YOU MUST ROUND ANSWER TO ONE DECIMAL TO FIND ANSWER! nˆp(1−ˆp)= Confidence Interval: What is the 95% confidence interval to estimate the population proportion? YOU MUST ANSWER TO THREE DECIMAL TO FIND ANSWER   ?????? < p <...
Refer to the accompanying data set and construct a 9595​% confidence interval estimate of the mean...
Refer to the accompanying data set and construct a 9595​% confidence interval estimate of the mean pulse rate of adult​ females; then do the same for adult males. Compare the results. Click the icon to view the pulse rates for adult females and adult males. Construct a 95​% confidence interval of the mean pulse rate for adult females.nothing bpm<μ<bpm bpm ​(Round to one decimal place as​ needed.) Construct a 95% confidence interval of the mean pulse rate for adult males....
3. Given the information on the sample below, use the steps to construct a 95% confidence...
3. Given the information on the sample below, use the steps to construct a 95% confidence interval for the population mean. Assume that the population is normally distributed. A college gives the same calculus final to all sections of the course. A sample of thirty randomly selected students that took the calculus final was collected after the exam. The mean score of the sample was 80 and the standard deviation of the sample was 13.2. A) Find the critical value...
What is the minimal sample size needed for a 95% confidence interval to have a maximal...
What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? (For each answer, enter a number. Round your answers up the nearest whole number.) (a) a preliminary estimate for p is 0.23 (b) there is no preliminary estimate for p
What is the minimal sample size needed for a 95% confidence interval to have a maximal...
What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? (For each answer, enter a number. Round your answers up the nearest whole number.) (a) a preliminary estimate for p is 0.23 (b) there is no preliminary estimate for p
What is the minimal sample size needed for a 95% confidence interval to have a maximal...
What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? (For each answer, enter a number. Round your answers up the nearest whole number.) (a) a preliminary estimate for p is 0.24 (b) there is no preliminary estimate for p
What is the minimal sample size needed for a 95% confidence interval to have a maximal...
What is the minimal sample size needed for a 95% confidence interval to have a maximal margin of error of 0.1 in the following scenarios? (For each answer, enter a number. Round your answers up the nearest whole number.) (a) a preliminary estimate for p is 0.16 :    (b) there is no preliminary estimate for p
Suppose a 95% confidence interval for the mean salary of college graduates in a town in...
Suppose a 95% confidence interval for the mean salary of college graduates in a town in Mississippi is given by [$36,815, $43,185]. The population standard deviation used for the analysis is known to be $13,000. [You may find it useful to reference the z table.] a. What is the point estimate of the mean salary for all college graduates in this town? b. Determine the sample size used for the analysis. (Round "z" value to 3 decimal places and final...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT