Suppose 225 randomly selected soon-to-be mothers are surveyed to determine whether or not they plan on breastfeeding. Of the 225 surveyed, 42 reported that they do not plan on breastfeeding. Find the margin of error for the confidence interval for the population proportion with a 99% confidence level. Z0.10 20,05 z0.025 Z001 z0.00s 1.282|1.645|1.960 2.326|2.576| Use the table of common z-scores above. Round the final ansIwer to three decimal places

Q: Of 363 randomly selected medical students, 20 said that they planned to work in a rural community.…

A:

Q: A health professional takes the temperatures of 5 patients:   99.8    98.3    96.9    98.0    98.3

A: Given information: 99.8, 98.3, 96.9, 98.0 and 98.3. Mean=99.8+98.3+96.9+98+98.35         =98.26…

Q: It was observed that 30 out of 100 randomly selected students smoked. Estimate the 95% confidence…

A: Given,sample size(n)=100no.of students smoked(x) =30sample proportion(p^)=xnsample…

Q: The figure to the right shows the results of a survey in which 1018 adults from Country A 1015…

A: Given Information: Country Sample size (n) Sample proportion (p^) A 1018 0.37 B 1015 0.19 C…

Q: Of 118 randomly selected adults, 34 were found to have high blood pressure. Construct a 95%…

A: According to the given information, we have Total number of adults = 118 34 were found to have high…

Q: Suppose 250 randomly selected people are surveyed to determine whether or not they play a musical…

A: Given n=250 p'=0.86q'=0.14 Confidence interval(CI)=95%

Q: Which of the following would result in the narrowest confidence interval? O A sample size of 30 with…

A: Given, The values of α and n.

Q: Determine the point estimate of the population mean and margin of error for the confidence interval…

A: From the given information, we have  The lower and upper bounds of the confidence interval is, 22and…

Q: Suppose 300 randomly selected students are surveyed to determine if they own a laptop. Of the 300…

A:

Q: Suppose you calculate a 99% confidence interval to be: 13.05 to 20.75. Determine the margin of error

A: Given data: The given upper limit is b=20.75. The given lower limit is a=13.05.   The expression for…

Q: A student was asked to find a 90% confidence interval for the proportion of students who take notes…

A: The provided information are:

Q: The production manager in an automobile plant is concerned with the number of cars that do not pass…

A: Not acceptable = 120-92 = 28

Q: The figure to the right shows the results of a survey in which 1001 adults from Country​ A, 1014…

A: For country A: It is given that sample size (n) is 1001 and the sample proportion is 0.34.

Q: A simple random sample of 120 vet clinics in the Midwest reveals that the vast majority of clinics…

A: Given that; Sample size (n) = 120  X = 88  At 90% confidence interval .

Q: In a recent random sampling, where 600 adults were surveyed, 16.4% indicate that they have fallen…

A: Given that, 600 adults were surveyed, 16.4% indicate that they have fallen asleep watching…

Q: Suppose that Randy is an analyst for the bicyling industry and wants to estimate the asking price of…

A: The sample size is 13, sample mean is $681.87, and sample standard deviation is $177.45. The degrees…

Q: A random sample of 560 serviced tables at a restaurant reveals that 20% of them offer tips to the…

A:

Q: A random sample of 200 female high school students in India showed that 110 are on Facebook. A…

A:

Q: Suppose a random sample of 459 married couples found that 307 had two or more personality…

A:

Q: The data given to the right includes data from 39 candies, and 8 of them are red. The company that…

A: Confidence Interval: Confidence interval means we can say a range of values of the specified…

Q: At a certain Senior High School, a random sample of 10 male students was taken and found that their…

A: Here, mean is 63.36 and standard deviation is 4.62. We will use one sample t confidence interval.

Q: In a simple random survey of 89 students of faculty of medicine at the University of Jordan, 73 said…

A: It is given that out of 89 students, 73 said that Principles of Statistics was the most satisfying.…

Q: an epidemiologist is womied about the prevalence of the flu in East Vancouver and the potential…

A: Given data, n=331 x=33 E=0.05 z-value at 95% confidence is Zc=1.960 n=?   p=x/n=33/331=0.0997

Q: From a survey of 350 coworkers you find that 231 would like the company to provide on-site daycare.…

A: Given that,  Sample size is n= 350  And we find 231 would like the company to provide on-site…

Q: If the number of smokers in a sample of 40 students selected from university A is 12 and the number…

A:

Q: 1. A study constructed a 95% confidence interval for the proportion of adults in the U.S. that have…

A: Note- Since you have posted multiple questions, as per our guidelines we are supposed to answer only…

Q: Two competing airlines, Alpha and Beta, fly a route between Des Moines, lowa, and Wichita, Kansas.…

A: From the provided information, Margin of error (E) = 0.04 Confidence level = 90% Proportion (p1) =…

Q: Suppose we take a random sample, N = 64, from the Texas population of adults and find that the…

A: It is given that, Sample size, n=64 x̅=14 and σ=4 We have, Z0.05/2 = 1.96 We can find 95% confident…

Q: Gallup is a company that conducts daily opinion polls on a variety of topics. In a recent daily…

A: Given that, Sample size, n = 1000 38% of the sample said they were committed to their work.

Q: Which of the following would result in the narrowest confidence interval? O A sample size of 30 with…

A: The confidence interval depends on the three factors: Confidence level: The width of the confidence…

Q: (B) In a hospital, an orthopedic doctor collects a random sample of 52 previous patients and checks…

A: Note: According to the guidelines, only the first three subparts have been solved. To get the…

Q: A survey of 800 women shoppers found that 17% of them shop on impulse What is the 98% confidence…

A:

Q: Suppose that 18% of a random sample of 2307 Miami residents said that they will donate blood in…

A: The sample proportion is given as 0.18. The sample size is given as 2307. The two-tailed z-critical…

Q: A company claims that the course they offer significantly increases the writing speed of…

A: Let X and Y denote the before score data and after score data. A 90% confidence interval for true…

Q: A random sample of students at a college shows that 54 of 200 students had part-time jobs. Which of…

A: It is given that x is 54 and n is 200.

Q: Suppose we are interested in finding a 95% confidence interval for the mean SAT Verbal score of…

A: Sorry, according to our guidelines we can answer only one question at a time. Kindly re-post the…

Q: The length, in words, of the essays written for a contest are normally distributed with a population…

A: Confidence Interval:The form of the confidence interval is,CI = Point estimate ± Margin of errorThe…

Q: A health professional takes the temperatures of 5 patients:   99.8    98.3    96.9    98.0    98.3…

A: We have given that  A health professional takes the temperatures of 5 patients: 99.8    98.3    96.9…

Q: The biologist is studying Black Carp invasiveness in Lake Ontario next. He doesn't have time to…

A: Given,n=75x=29sample…

Q: The Universal Music Group is the music industry leader worldwide in sales according to the company…

A: The random variable music sales follow normal distribution. The sample size is 1003. The sample…

Q: A cell phone company claims that the average time a person spends on their phone is 12.8 hours a…

A: It is given that the average time spent on phone is 12.2 hours per week and standard deviation is…

Q: In a recent poll, 19% of respondents answered option A. The margin of sampling error was plus or…

A: Given information- The percentage of the population answered A is, p = 19% The margin of error, E…

Q: Suppose you didn’t know whether the coin was fair or not and you wanted to determine a 95%…

A: It is given that sample size (n) is 16,000 and x is 8040.

Q: In a recent study of 42 eighth graders, the mean number of hours per week that they watched…

A: We are required to estimate the interval for the TV watching hours per week from the given sample of…

Q: Suppose a random sample of 400 is selected from a population with a standard deviation of 5. If the…

A: By using the given information, we have Mean = 25 Standard deviation = 5 Sample size = 400 98%…

Q: 1) Jaimie does a study on how many students have passed his classes in the past. He finds that 2739…

A: The random variable students who pass follow normal distribution. The number of successes is 2739.…

Q: Suppose you calculate a 99% confidence interval of 14.71 to 21.64. Determine the margin of error.

A: Given information- We have given a value of 99% confidence interval is- C.I = (14.71, 21.64) Lower…

Q: Determine the point estimate of the population mean and margin of error for the confidence interval…

A: Given: Lower bound = 29 Upper bound = 39

Q: A survey of a random sample of 256 college students found that 36% said they frequently experience…

A: For a known sample proportion, we want an interval to be estimated, which will include the true…

Q: If a sample proportion is 0.68, which of the following could be a 90% confidence interval for the…

A: The confidence interval formula of population proportion is (p̂ ± E), where p̂ is the sample…

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.