A simple random sample of 300 U.S. adults indicated that 11% approve of attempts to clone a human. Calculate a 95% confidence interval using the results of the survey.

Q: The Indian River County Health Department needs to estimate the proportion of all children in the…

A: "Since you have posted a question with multiple sub-parts, we'll solve the first three sub-parts for…

Q: Find the value of ta for a 99% confidence interval when sample size is 30

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: In another pre-election poll, a pollster finds that 438 out of 600 people polled favor, Smith.…

A: Given, X = 438 N = 600 The sample proportion is given by:

Q: During a flu vaccine shortage in the United States, less than a majority of people were able to…

A: Given data, n=2350 x=978 sample proportion p=xn=9782350=0.4162   z-value at 95% confidence is…

Q: In response to a recent GSS survey on whether the Government should impose strict laws to prohibit…

A: Solution: Let X be the number of subjects said “yes” and n be the sample number of subjects. From…

Q: 5.From a sample of 1,000 college students, 28% watch the Super Bowl game each year. Find the margin…

A:

Q: In a simple random sample of 38 bulbs, 25 gives a good glow, What is a 85% score Confidence interval…

A: Given data,n=38x=25sample proportion p=xn=2538=0.66z-value at 85% confidence is Zc=1.44

Q: A researcher surveys 50 individuals in Smithville and 40 in Amherst, finding that 30% of smithville…

A: Given: Smithville is taken as the first group. Amherst is taken as the second group.…

Q: In a recent poll, 340 people were asked if they liked dogs, and 31% said they did. Find the margin…

A:

Q: In a random sample of 500 people eating lunch at a cafeteria on various Fridays, it was found that…

A:

Q: In a recent poll, 260 people were asked if they liked dogs, and 13% said they did. Find the margin…

A:

Q: A magazine reports survey results of 600 randomly selected adults bystating that: “65% of those…

A: From the given information, Sample size (n) = 600 Probability that favor gun control (p) =0.65…

Q: In order to estimate the proportion of entering students who graduate within six years, the…

A: Solution: Let X be the number of students who graduate within six years and n be the sample number…

Q: In a recent poll, 120 people were asked if they liked dogs, and 29% said they did. Find the margin…

A:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A:

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 survey found that out of 900 workers, 150 said they were interrupted by frank phone calls. Find…

A:

Q: In a study of 150 randomly selected accidents that required treatment in an emergency room, 36%…

A:

Q: In a recent poll, 500 people were asked if they liked dogs, and 54% said they did. Find the margin…

A: Here we need to find the Margin of error corresponding to 95% confidence level.

Q: In a recent polI, 200 people were asked if they liked dogs, and 15% said they did. Find the margin…

A: From the provided information, Sample size (n) = 200 15% people said they like dogs that is p̂ =…

Q: A 90 percent confidence interval for a population parameter means that if a large number of…

A: A 90% confidence interval for a population parameter means that if a large number of confidence…

Q: in a random sample of 800 austin automobile owners, it was found that 480 would like to see the size…

A: We have to find given ci.

Q: In a recent poll, 260 people were asked if they liked dogs, and 32% said they did. Find the margin…

A: Find z-critical value:…

Q: In a sports poll, 142 of 500 randomly selected Americans indicated that they consider themselves to…

A: Given that, In a sports poll, 142 of 500 randomly selected Americans indicated that they consider…

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: In a sample of 600 Ottawa families, it is found that 360 rent their dwellings while 240 own their…

A: It is given that sample size (n) is 360 and x is 240.

Q: In a recent poll, 170 people were asked if they liked dogs, and 24% said they did. Find the margin…

A:

Q: in a random sample of 192 college students, 129 had part-time jobs. Find the margin of error for the…

A:

Q: A random survey of 36 airline passengers indicates that twelve have never flown before. Find a 95%…

A: We have given that,  Sample size (n) = 36 and favorable cases         (X) = 12 Then,  We Will find…

Q: In a random sample of 184 college students, 97 had part-time jobs. Find the margin of error for the…

A: Given : Sample Size, n = 184 Number of successes, x = 97 confidence level,c=0.99

Q: In a sample of 900 people, 378 say they snooze the alarm more than once in the morning. Find a 95%…

A: Given,   The sample proportion is,

Q: A Pew Research Center survey of 1,857 internet users found that 1,124 people agreed that online…

A: Given: CI=95% p^=11241875=0.599 n=1875

Q: A survey of 80 recent arcanum students showed that 46 were ready for summer break. Find the 95%…

A: Obtain the 95% confidence interval for the true proportion of students ready for summer break. The…

Q: In a sample of 95 recommendations, it is found that 56% of them made money. Determine the upper…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: In a preelection poll, a pollster finds that 442 out of 650 people polled favor Smith. Construct the…

A: We need to construct the 95% confidence interval for the population proportion. We have given the…

Q: find tc for a 95% confidence level when the sample size is 6.

A: level of significance, alpha = 0.05from standard normal table, two tailed t alpha/2 with n-1 = 6 d.f…

Q: A marketing study with a random sample of 400 results in 160 subjects reacting positively to the…

A:

Q: In a certain state, a survey of 500 workers showed that 38% belonged to a union.  Find the 93%…

A: Computation of critical value: 1-α=0.93α=0.07α2=0.0351-α2=0.965 The critical value of z-distribution…

Q: In a recent poll, 410 people were asked if they liked dogs, and 44% said they did. Find the margin…

A: n = 410 p^=0.44 Confidence interval = 95%

Q: In a recent poll, 500 people were asked if they liked dogs, and 72% said they did. Find the margin…

A:

Q: In a sample of 500 Canadians, 225 say they would rather retire in Florida than in Canada. Calculate…

A:

Q: A recent survey of 1,000 people found that 90% of Americans support background checks for purchasing…

A:

Q: A random sample of 180 men indicated that 50 were smokers, and a random sample of 150 women surveyed…

A: Given; p1=50180=0.28p2=39150=0.26Level of significance=0.02 Confidence interval is given by-…

Q: confidence interval for the true proportion

A: We have to find out the confidence interval for the true proportion.

Q: A survey found that out of 800 workers, 150 said they were interrupted by frank phone calls. Find…

A: Given,n=800x=150p^=xnp^=150800=0.18751-p^=1-0.1875=0.8125α=1-0.95=0.05α2=0.025Z0.025=1.96

Q: In a recent poll, 240 people were asked if they liked dogs, and 47% said they did. Find the margin…

A: Obtain the margin of error at the 90% confidence level. The margin of error at the 90% confidence…

Q: A study of 150 randomly selected accidents that involved trips to the emergency room found that 36%…

A: Given 99% confidence level, significance level α=1-0.99=0.01

Q: Suppose that based on a random sample, a 95% confidence interval for the mean hours slept (per day)…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.