Use the one-proportion z-interval procedure to find the required confidence interval. Of 146 patients selected at random from a clinic, 35 were found to have high blood pressure. Construct a 95% confidence interval for the percentage of all patients at this clinic that have high blood pressure.  a 15.7% to 32.2%  b 18.1% to 29.8%  c 17.0% to 30.9%  d 14.9% to 33.1%

Q: In a survey of 419 randomly selected gun owners, it was found that 85 of them said they owned a gun…

A: Obtain the margin of error at the 95% confidence interval. The margin of error at the 95% confidence…

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

A:

Q: In a survey of 2279 ​adults, 729 say they believe in UFOs. Construct a 90% confidence…

A:

Q: Use the given confidence interval to find the margin of error and the sample mean. .734, .760

A: From the given information, the confidence interval is (0.734, 0.760). It can be expressed in,

Q: A manager needs to know the proportion of employees who have insurance. He selects 200 employees and…

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Q: find the sample size needed to estimate the percentage of democrats who have tattoos. Use a 0.05…

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Q: n a survey of 378 randomly selected gun owners, it was found that 83 of them said they owned a gun…

A: From the given information, Sample size (n) =378 Consider, X be random variable that denotes the gun…

Q: In a recent poll, 260 people were asked if they liked dogs, and 9% said they did. Find the margin of…

A:

Q: The percentage of high school graduates applying to multiple colleges has been increasing over the…

A: Givenn=374x=157p^=xn=157374=0.41981-p^=1-0.4198=0.5802α=1-0.90=0.1α2=0.05Z0.05 =1.645

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A: Given data, n=152 x=101 p=x/n =0.664 The 95% CI is Zc=1.96

Q: The 95% confidence interval generally is: Select one: a. none of these. b. wider than the 99%…

A: Confidence level -95%   Higher the confidence level, higher the width of the confidence interval.

Q: In a survey of 3700 TV viewers, 834 said they watch network news programs. Find the margin of error…

A: Solution

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: You observe 60 customers at a coffee shop, and 82% of them tip. What is the 95% confidence interval…

A: Given : You observe 60 customers at a coffee shop, and 82% of them tip.

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1223 males surveyed,…

A: From the given information, 1223 males surveyed, 188 responded that they had at least one tattoo.…

Q: To estimate the proportion of smoker a sample of 100 men was selected. In the selected sample, 40…

A:

Q: A random sample of 320 medical doctors showed that 162 had a solo practice. Let p represent the…

A: Given,

Q: A random sample of 900 car owners in a particular city found 252 car owners who received a speeding…

A: Given,n=900x=252p^=xnp^=252900=0.281-p^=1-0.28=0.72α=1-0.95=0.05α2=0.025Z0.025 =1.96   (from…

Q: A history teacher records the SAT scores of all 87 of her students. The data is used to construct a…

A: For calculating the confidence interval, we need to satisfy the following conditions: Independence…

Q: Find the indicated margin of error. In a survey of 1600 T.V. viewers, 50% said they watch network…

A: We have given that,  Sample size (n) = 16000, confidence interva (C.I) = 95% and estimate population…

Q: In a survey of 126 randomly selected gun owners, it was found that 53 of them said they owned a gun…

A: Find z-critical value: For the two-tail test, Area on each tail. Area to the left of the normal…

Q: in a survey of 2042 adults in a recent​ year, 715 made a New​ Year's resolution to eat healthier.…

A:

Q: When 307 college students are randomly selected and surveyed, it is found that 128 own a car. Find a…

A: Given Data Sample Size, n = 307 Number of successes, x = 128 Significance level,…

Q: The number of successes and the sample size are given for a simple random sample from a population.…

A: Obtain the value of sample proportion. The value of sample proportion is obtained below: From the…

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1244 males surveyed,…

A: Confidence interval give a range of plausible values for unknown parameters of population. The width…

Q: A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1238 males​…

A:

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1232 males surveyed,…

A: Given that: Total number of males surveyed, n1=1232 Number of male respondent with at least one…

Q: The County Development Agency does a survey of all the mobile home manufacturers in Clarion County…

A:

Q: a survey of 183 randomly selected gun owners, it was found that 67 of them said they owned a gun…

A: Provided information is, in a survey of 183 randomly selected gun owners, it was found that 67 of…

Q: A random sample of 2000 car owners in a particular city found 740 car owners who received a speeding…

A:

Q: In a survey of 2105 adults in a recent year, 737 made a New Year's resolution to eat healthier.…

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Q: A survey showed that 20.2% of the children that participated in the survey like flavor O If the…

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Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

A: Given data,n=786x=10p=x/n=10/786 =0.0127z-value at 98% confidence is Zc=2.326

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1229 males surveyed,…

A: From the provided information,

Q: A research institute asked students if they felt vulnerable to identity theft. In the poll, n=1047,…

A:

Q: A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1227 males​…

A:

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1228 males surveyed,…

A: Male with tattoos Sample size, n1=1228 Had at least one tattoo, x1=176   Female with tattoos Sample…

Q: What Z score would be used to construct a 90% confidence level? Is it ... a. 1.65 b. 2.33 c.…

A: Confidence Level = 90 Significance Level = α = (100-90)% = 0.1 Critical value = z* = 1.65   […

Q: In a survey of 2445 adults in a recent​ year, 1491 say they have made a New​ Year's resolution.…

A: From the given information, let X be the number of adults have made a New Year’s resolution. X =…

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1241 males surveyed,…

A: We have given that,  X1 = 182, n1 = 1241  And  X2 = 139, n2 = 1047 Then,  We will find the 99%…

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…