A simple random sample of size n=350 individuals who are currently employed is asked if they work at home at least once per week. Of the 350 employed individuals​ surveyed, 35 responded that they did work at home at least once per week. Construct a​ 99% confidence interval for the population proportion of employed individuals who work at home at least once per week. The lower bound is: The upper bound is:

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Q: Construct the indicated confidence interval for the difference between population proportions p1 -…

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A: The formula for computing confidence interval is,  n is the sample size and P is the proportion.

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Q: A simple random sample of size n=400 individuals who are currently employed is asked if they work at…

A: It is given that sample size (n) is 400 and x is 41.

Q: In a random sample of 850​ Americans, 385 reported that they work two jobs. Which of the following…

A: The known values are, The sample proportion is,

Q: sample of 97 psychology graduates found an average salary of $71 K/year. Assume ?=$14 K/year. Find…

A: Given Z score 90% confidence interval=1.645 Sigma=14 n=97

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

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Q: A Gallup Youth Survey in 2001 found that of 501 randomly selected teenagers in the U.S., 271 of them…

A: Given Total number of teenagers selected = 501Number of teenagers said who get along with their…

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 437 green peas…

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Q: the following sample was taken from a normally distributed population: 20,27,15,2016,22 and 13. A…

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Q: Calculate a 95% upper confidence bound for the mean of a normally distributed population using the…

A: Given that, x = 32289  s = 2846  n=15  For 95% confidence interval,the z value is 1.96

Q: Construct the indicated confidence interval for the difference between population proportions p1-p2.…

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Q: A sample of size 84 was taken from a very large population. Sample statistics, x¯ and s, were used…

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Q: A pharmaceutical company is running tests to see how well its new drug lowers cholesterol. Eleven…

A: From the provided information, Sample size (n) = 11 Confidence level = 95%

Q: The career center at a large university surveyed a random sample of students who graduated the…

A: First, we need to calculate the proportions of engineering and business majors who were able to find…

Q: A simple random sample of size n=400 individuals who are currently employed is asked if they work at…

A:

Q: The tobacco industry closely monitors all surveys that involve smoking. One survey showed that among…

A: Confidence interval : Confidence interval is a range of values and it contains the true population…

Q: A survey of 20 people asked, “If you’ve ever been married, how old were you when you were first…

A:

Q: In a survey of 2480 golfers, 15% said they were left-handed. The survey's margin of error was 3%.…

A: Sample size(n)=2480sampl proportion(p^)=0.15Margin of error(E)=0.03

Q: A simple random sample of size n=350 individuals who are currently employed is asked if they work at…

A: Given, The sample proportion is,

Q: In a random sample of 145 students, we find that 53% have attended a baseball game at some point in…

A: Given,sample size (n)=145sample proportion(p^)=0.53α=1-0.95=0.05α2 =0.025z0.025 =1.96

Q: A simple random sample of size n equals 450 individuals who are currently employed are asked if they…

A: Given that, The sample proportion is, Critical values: By using the standard normal table of Z,…

Q: A simple random sample of size n=450 individuals who are currently employed is asked if they work at…

A: From given data we have : n=450 x=27 so, Point estimate is  p^=xn  =27450  =0.06

Q: a survey asked a random sample of n= 2752 us adults whether they had visited a public library in the…

A: The number of females said yes (xf) is 726 and the total number of females (nf) is 1423.

Q: . Jordan operates a dental practice with 315 patients and she would like to estimate the proportion…

A: Given X=30 n=75 Significance level=1-0.90=0.10

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Q: survey conducted by Gallup in 2020 asked 1,102 randomly selected U.S. adults, "What do you think is…

A: We have given that  Sample size n=1102 90% confidence interval.  = (0.6773, 0.7227)

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Q: A simple random sample of size n=200 individuals who are currently employed is asked if they work…

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Q: A simple random sample of 1000 people age 18 or over is taken in a large town. It turns out that 223…

A: From the provided information, Sample size (n) = 1000 223 people in the sample are newspaper…

Q: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the…

A: Given Information: Under age of 18  n1=480 x1=160 Over age of 18 n2=500 x2=140