Out of 300 people sampled, 258 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids. Give your answers as decimals, to three places

Q: Out of a sample of 600 adults aged 18 to 30, 162 still lived with their parents. Based on this,…

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Q: Out of 200 people sampled, 188 had kids. Based on this, construct a 95% confidence interval for the…

A: Given information- Confidence level, c = 95% Sample proportion is,

Q: In a recent poll, 300 people were asked if they liked dogs, and 54% said they did. Find the Margin…

A: Obtain the margin of error for the poll at the 95% confidence level. The margin of error for the…

Q: In a recent poll, 470 people were asked if they liked dogs, and 94% said they did. Find the Margin…

A:

Q: Out of 100 people sampled, 84 had kids. Based on this, construct a 95% confidence interval for the…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: Out of 500 people sampled, 390 had kids. Based on this, construct a 99% confidence interval for the…

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

Q: In a recent poll, 410 people were asked if they liked dogs, and 24% said they did. Find the Margin…

A: We have to find margin of error.

Q: Out of 400 people sampled, 344 had kids. Based on this, construct a 99% confidence interval for the…

A: Given that sample size n = 400 Number of peoples with kids, X = 344 The critical value of Z at 99%…

Q: Out of 400 people sampled, 232 had kids. Based on this, construct a 95% confidence interval for the…

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Q: Out of 600 people sampled, 552 had kids. Based on this, construct a 90% confidence interval for the…

A: In statistical inference, there are two types of estimation,  Point estimation and Interval…

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: Out of 600 people sampled, 486 had kids. Based on this, construct a 95% confidence interval for the…

A: It is given that  Favourable cases, X = 486 Sample size, n = 600

Q: Out of 400 people sampled, 244 had kids. Based on this, construct a 95% confidence interval for the…

A:

Q: Out of 500 people sampled, 190 had kids. Based on this, construct a 90% confidence interval for the…

A: Given : Sample Size, n = 500 Number of successes, x = 190 confidence level,c=0.9

Q: In a recent poll, 410 people were asked if they liked dogs, and 32% said they did. Find the Margin…

A:

Q: Out of 400 people sampled, 68 had kids. Based on this, construct a 99% confidence interval for the…

A: Solution: Let X be the number of people had kids and n be the number of people sampled. From the…

Q: In a recent poll, 310 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A: Given data: n = 310p⏞ = 40100=0.40C.I = 99%      =0.99Then, calculate αα = 1-0.99   =0.01Now,…

Q: A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% regularly used Facebook as a news…

A: Given that: Sample proportion, p^=0.5042 sample size (n) =900

Q: Out of 600 people sampled, 462 had kids. Based on this, construct a 95% confidence interval for the…

A: We have given thatn = 600x = 462p̂ = x/n = 462/600 = 0.770Significance level (α) = 1 - 0.95 =…

Q: Out of 400 people sampled, 164 had kids. Based on this, construct a 95% confidence interval for the…

A: Given:Sample size = n = 400 peoplePeople having kids = x = 164Confidence level = 0.95So, α = 1 –…

Q: Out of 500 people sampled, 455 had kids. Based on this, construct a 90 % confidence interval for the…

A: The formula for the confidence interval for the proportion is,

Q: The confidence interval for a population porportion is (0.57, 0.73). What the the sample proportion…

A: Given the confidence interval for a population porportion is (0.57, 0.73).That is, lower confidence…

Q: t poll, 240 people were asked if they liked dogs, and 35% said they did. Find the Margin of Error…

A: Given: n = 240 p^=35%=0.35 The value of z at 95% confidence level is 1.96, which can be obtained by…

Q: Out of 400 people sampled, 288 had kids. Based on this, construct a 99% confidence interval for the…

A: In statistical inference, there are two types of estimation,  1) Point estimation and 2) Interval…

Q: Out of 400 people sampled, 332 had kids. Based on this, construct a 95% confidence interval for the…

A: sample size (n) = 400favorable outcomes (x) = 33295% ci p.

Q: Out of 400 people sampled, 304 had kids. Based on this, construct a 95% confidence interval for the…

A:

Q: Out of 500 people sampled, 330 had kids. Based on this, construct a 90% confidence interval for the…

A:

Q: Out of 600 people sampled, 240 have shopped online. Based on this, construct a 90% confidence…

A: Find z-critical value:…

Q: Out of 400 people sampled, 220 had kids. Based on this, construct a 99% confidence interval for the…

A: The random variable X follows binomial distribution. X ~ B (n, p) The sample size is 400. The number…

Q: In a recent poll, 490 people were asked if they liked dogs, and 51% said they did. Find the Margin…

A: Given data,n=490p=51%=0.51z-value at 99% confidence is Zc=2.576E=?

Q: Out of 100 people sampled, 47 had kids. Based on this, construct a 95% confidence interval for the…

A: Let p is defined as the population proportion of people with kids. A sample of 100 people considered…

Q: In a recent poll, 190 people were asked if they liked dogs, and 81% said they did. Find the Margin…

A:

Q: In a recent poll, 450 people were asked if they liked dogs, and 54% said they did. Find the Margin…

A: Solution

Q: Out of 400 people sampled, 76 had kids. Based on this, construct a 90% confidence interval for the…

A: Find z-critical value:…

Q: Out of 600 people sampled, 180 had kids. Based on this, construct a 95% confidence interval for the…

A: The sample of 600 people is considered out of which 180 have a kid n=600x=312The 95% confidence…

Q: Manual Transmission Automobiles In a recent year, 6% of cars sold had a manual transmission. A…

A: 0.161<P<0.306

Q: Out of 600 people sampled,  510 had kids. Based on this, construct a 90% confidence interval for the…

A: It is given that Out of 600 people sampled,  510 had kids.

Q: Out of 100 people sampled, 68 had kids. Based on this, construct a 95% confidence interval for the…

A: It is given that:

Q: Out of 200 people sampled, 50 had kids. Based on this, construct a 90% confidence interval for the…

A: Given that, Total number of people sampled = 200 Number of people had kids = 50 Confidence level =…