7. In a survey conducted for American Express, 27% of small business owners indicated that they never check in with the office when on vacation. The article did not disclose the sample size used in the study. a. Suppose that the survey was based on 500 smail business owners. Construct a 95% confidence interval estimate for the popalation proportion of small business owners who never check in with the office when on vacation. b. Suppose that the survey was based on 1,000 small business owners. Construct a 95% confidence interval estimate for the population proportion of small business owners who never check in with the office when on vacation.

Question

plz help trying to study for an upcoming exam and cant figure this out

 

7. In a survey conducted for American Express, 27% of small business owners indicated that they
never check in with the office when on vacation. The article did not disclose the sample size used
in the study.
a. Suppose that the survey was based on 500 smail business owners. Construct a 95% confidence
interval estimate for the popalation proportion of small business owners who never check in
with the office when on vacation.
b. Suppose that the survey was based on 1,000 small business owners. Construct a 95% confidence
interval estimate for the population proportion of small business owners who never check in
with the office when on vacation.
View transcribed image text
Expand

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Pg. 351 45. The number of "destination weddings" has skyrocketed in recent years. For example, many ...

A: The data set is: 29.7, 29.4, 31.7, 29.0, 29.1, 30.5, 29.1, 29.8 The null and alternative hypotheses ...

Q: If P = 0.50, which is the best conclusion? a) H0 is definitely false. b) H0 is definitely true. c) T...

A: P-value: If the null hypothesis is true, the probability that obtaining the test statistic is extrem...

Q: Can you explain in detail if X and Y are independent in part A

A: a. Denote g (x) as the marginal density of X, and h (y) as the marginal density of Y. The marginal d...

Q: Question 85 parts D and E

A: Solution: 85. d. State the hypotheses. Null hypothesis: That is, the proportion of students study a...

Q: A penny and a nickel are tossed. Both are fair coins. Let X = 1 if the penny comes up heads, and let...

A: Hi! Thank you for posting the question. Since your question has more than three sub-parts, we have s...

Q: Suppose P(X1) = .75 and P(Y2|X1) = .40. What is the joint probability of X1 and Y2?

A: Find the joint probability of X1 and Y2. The joint probability is obtained as given below:

Q: A process that polishes a mirrored surface leaves an average of 2 small flaws per 5 m² of surface. T...

A: Click to see the answer

Q: A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Liste...

A: Click to see the answer

Q: The time spent by a customer at a checkout counter has mean 4 minutes and standard deviation 2 minut...

A: Click to see the answer

Q: The following histogram shows the distribution of house values in a certain city. The mean of the di...

A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...

Q: Each chart has horizontal lines drawn at the m, at m+2o and at m+3o determine whether the process sh...

A: Requirements for out-of-control state: A process is said to be out-of-statistical control if any one...

Q: Braking Reaction Times: Histogram Listed below are sorted braking reaction times (in 1/10,000 sec) f...

A: Click to see the answer

Q: Tax Cheating? Frequencies of leading digits from IRS tax files are 152, 89, 63, 48, 39, 40, 28, 25, ...

A: Click to see the answer

Q: The area covered by 1 L of a certain stain is normally distributed with mean 10 m² and standard devi...

A: Click to see the answer

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest...

A: Click to see the answer

Q: An ink cartridge for a laser printer is advertised to print an average of 10,000 pages. A random sam...

A: Click to see the answer

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.89...

A:   From the given information, The amounts of nicotine in a certain brand of cigarette are normally d...

Q: The article “Predicting Depressed Patients with Suicidal Ideation from ECG Recordings” (A. Khandoker...

A: Null hypothesis:

Q: Choose the best answer to fill in the blank. The variance of an estimator measures a) how close the ...

A: Statistical variance is a calculation of the diffusion between numbers in a data set. It calculates ...

Q: 14. The U.S. Postal Service reports that 95% of first-class mail within the same city is delivered w...

A: 14

Q: A random sample of n=4 scores is selected from a population with mu=80 and standard deviation=20. On...

A: Click to see the answer

Q: As a part of the recruitment of new business in their city, the economic development department of t...

A: a) The 99% confidence interval for the mean gross profit margin is, Thus, the 99% confidence interv...

Q: Question 88 parts A and B

A: Click to see the answer

Q: When two births are randomly​ selected, the sample space for genders is​ bb, bg,​ gb, and gg. Assume...

A: Click to see the answer

Q: Let X ∼ Geom(p). Find the MLE of p.

A: Given that, Let X ∼ Geom (p). Find the MLE of p.

Q: Self-Reported and Measured Male Heights As part of the National Health and Nutrition Examination Sur...

A: Note: in this scenario, the confidence interval for the dataset is obtained using MINITAB. The data ...

Q: A random sample of n = 9 is obtained from a normal distribution with μ= 40 and σ=15. What is the pro...

A: Click to see the answer

Q: It is desired to check the calibration of a scale by weighing a standard 10 g weight 100 times. Let ...

A: Here, the null hypothesis is rejected. Thus, there is enough evidence to conclude that the scale is ...

Q: how much would you be willing to pay for a lottery ticket with a 1 in a 10 millions chance of winnin...

A: Note: Hey there! Thank you for the question. Since no particular rule is mentioned, we have assumed ...

Q: Refer to Exercise 21. It is discovered that the mean of the sample used to compute the confidence bo...

A: Click to see the answer

Q: A grinding machine will be qualified for a particular task if it can be shown to produce less than 8...

A: Where p is the proportion of defective parts

Q: Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean ...

A: Click to see the answer

Q: A uniform distribution is defined over the interval from 6 to 10. What are the values for a and b? ...

A: Click to see the answer

Q: The thicknesses of eight pads designed for use in aircraft engine mounts are measured. The results, ...

A: The data is provided for thickness of eight pads in mm. The level of significance is provided as 0.0...

Q: Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 a...

A: Click to see the answer

Q: A pitcher pitches a strike ( a good pitch) an average of 75% of the time. What is the probability th...

A: Click to see the answer

Q: Oscars Using the listed actress/actor ages, find the best predicted age of the Best Actor given that...

A: The data shows that the ages of best actresses and best actors for winning the Oscar awards. The lev...

Q: ) The Obama Administration instituted an economic recovery program in 2009 to arrest the recent decl...

A: 1.   The number of businesses closed in 2011 is 10 and it is calculated below:   The given logistic ...

Q: 20. Which is better: a score of 82 on a math test with a mean of 70 and a standard deviation of 8, o...

A: Click to see the answer

Q: What percent of men have a total cholesterol level less than 225 milligrams per deciliter of blood?

A: Click to see the answer

Q: the measure of center that is not sensitive to the presence of extreme values is the ______

A: Click to see the answer

Q: Fill in the blank: If the null hypothesis is Ho: µ < 5, then the mean of x under the null distributi...

A: Points on sampling distribution of the sample mean: If the true population distribution of a random...

Q: It is desired to check the calibration of a scale by weighing a standard 10-gram weight 100 times. L...

A: Click to see the answer

Q: A student wants to estimate the mean score of all college students for a particular exam. First use ...

A: Solution: From the given information, the possible scores range from 100 to 2200. Here, the largest ...

Q: 6. The director of admissions at Kinzua University in Nova Scotia estimated the distribution of stud...

A: Click to see the answer

Q: A machine that fills cereal boxes is supposed to be calibrated so that the mean fill weight is 12 oz...

A: Click to see the answer

Q: Question 75 parts A, B, and C

A: Solution: 75. a. From the given information, the sample size is n=40 and p=0.59. Here, Here, np and...

Q: A new muscle relaxant is available. Researchers from the firm developing the relaxant have done stud...

A: GivenThe time lapse between administration of the drug and beginning effects of the drug is normally...

Q: In a comparison of the effectiveness of distance learning with traditional classroom instruction, 12...

A: Click to see the answer

Q: Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(-...

A: The z- values tell that the number of standard deviation by which the value of a raw score is above ...

Transcribed Image Text

7. In a survey conducted for American Express, 27% of small business owners indicated that they never check in with the office when on vacation. The article did not disclose the sample size used in the study. a. Suppose that the survey was based on 500 smail business owners. Construct a 95% confidence interval estimate for the popalation proportion of small business owners who never check in with the office when on vacation. b. Suppose that the survey was based on 1,000 small business owners. Construct a 95% confidence interval estimate for the population proportion of small business owners who never check in with the office when on vacation.