In a survey of 3042 ​adults, 1473 say they have started paying bills online in the last year. Construct a​ 99% confidence interval for the population proportion. Interpret the results. A​ 99% confidence interval for the population proportion is (_,_)

Q: A doctor would like to estimate the mean difference in height of pairs of identical twins. The…

A: The correct inference regarding the given interval of (-0.823, 0.573) is to be made from the given…

Q: 10,9,20,13,1210,9,20,13,12 Using these data, construct a 99%99% confidence interval for the average…

A: Solution: a. Let X be the net change in a student’s score after completing the course. The given…

Q: A random sample of 300 high school students in a particular town showed that 165 smoke on a regular…

A: Given Information: Sample size (n) = 300  Proportion of students who smoke (p) = 165/300 = 0.55

Q: A random survey of 70 male sophomores showed 16 preferred off campus living and out of 63 female…

A:

Q: I want to estimate the population mean number of times people walk their dogs in a day In my…

A: Given information- Sample size, n = 5 Calculating sample mean and sample standard deviation using…

Q: Out of 400 people sampled, 32 had kids. Based on this, construct a 95% confidence interval for the…

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

Q: Suppose we take a survey of 200 students and ask how much they study per week. The result is an…

A: From the above data  We are given that the  95% confidence interval is (10, 10.5). The population…

Q: We randomly sample 300 people in a specific town. 96 of them like cats. Based on this, construct a…

A: The provided information are: Sample size=n=300 Number of favroable cases==x=96 to Construct the 95%…

Q: confidence interval for the proportion of unemployed adults who have been unemployed for more than…

A: Here given  In a survey of 532 unemployed adults, 225 said that they had been unemployed for more…

Q: Suppose that a 92% Confidence Interval for estimating the average heights, in inches, of all college…

A: confidence interval = x ± margin of errorlower limit = x - margin of errorupper limit = x + margin…

Q: uppose a researcher collected data with n = 200 and came up with a sample mean of 83 and 95%…

A: Given n=200 Mean=83

Q: If a school district takes a random sample of 75 Math SAT scores and finds that the average is 433,…

A:

Q: A survey of 45,535 adults showed that 20,901 were very concerned abut climate change. What is the…

A:

Q: What is the upper bound of the confidence interval? A 98% confidence interval for the data: 25, 38,…

A: We have given data, X 25 38 62 45 61 38 21 42 31 35 The confidence level is 1-α=0.98.

Q: In a survey of 793 adults, 460 say they have started paying bills online in the last year. Construct…

A: Answer: From the given data, Sample size(n) = 793 X = 460 98% confidence interval,

Q: In a survey of 2896 adults, 1441 say they have started paying bills online in the last year.…

A: Given data X=1441 n=2896

Q: A random sample of 1700 car owners in a particular city found 799 car owners who received a speeding…

A: Given,n=1700x=799p^=xnp^=7991700=0.471-p^=1-0.47=0.53α=1-0.95=0.05α2=0.025Z0.025=1.96  (from…

Q: 67% out of 150 pupils from school A passed an exam; 62% of 120 pupils at school B passed. Estimate…

A: Given : n1 = 150 n2 = 120 confidence level,c=0.9

Q: In a survey of 589 adults, 233 say they have started paying bills online in the last year. Construct…

A:

Q: In a survey of 485 adults, 156 say they have started paying bills online in the last year. Construct…

A: Answer: From the given data, Sample size(n) = 485 X = 156 95% confidence interval,

Q: If a school district takes a random sample of 80 Math SAT scores and finds that the average is 497,…

A:

Q: In a sample of 550 adults, 512 had children. Construct a 99% confidence interval for the true…

A: Given X=512 n=550

Q: If a school district takes a random sample of 89 Math SAT scores and finds that the average is 497,…

A: From the provided information, Sample size (n) = 89 Sample mean (x̅) = 497 Population standard…

Q: To construct a confidence interval, we have to make three assumptions. explain what are those…

A:

Q: Construct a confidence interval for GDP in Sweden from 1990-2021.

A: Gross Domestic Product of the data from 1990-2021 1990 240 1991 241 1992 243 1993 210…

Q: A survey of 50 randomly chosen students, 10 of them have a surfing board. Create a 99% confidence…

A: Given n = 50           x = 10  therefore, p=xn                    = 0.2 X ~ B (n, p) P(X=x) = Cxn…

Q: In a survey of 3235 adults 1499 say they have started paying bills online in the last year. A 99%…

A: Solution: Let X be the number of adults say they have started paying bills online in the last year…

Q: A sample of 400 homeowners includes 124 that expect their home to increase in value in the next…

A: Margin of error: ME=Zα/2 * √p̂(1-p̂)/n

Q: nutritionist

A: Please refer to the image below

Q: I'm a survey of 2589 adults 1500 say they have started paying bills online in the last year.…

A:

Q: If a school district takes a random sample of 89 Math SAT scores and finds that the average is 494,…

A:

Q: Out of 100 people sampled, 44 have lied to a family member in the past month. Based on this,…

A:

Q: In a survey of 2270 ​adults, 746 say they believe in UFOs.   Construct a 90% confidence interval for…

A: Given that, Total number of adults = 2270 746 say they believe in UFOs.

Q: A survey found that 611 out of 663 college graduates cannot correctly spell the word aluminum. Find…

A: Given that  A survey found that 611 out of 663 college graduates cannot correctly spell the word…

Q: confidence interval for a population mean is (56,78), with a margin of error of 11. What is the…

A: From provided information, Confidence interval for population mean is (56, 78), with margin of error…

Q: Suppose a marketing company computed a 96% confidence interval for the true proportion of customers…

A: The objective of the question is to understand the meaning of the given 96% confidence interval for…

Q: 11,6,9,10,711,6,9,10,7 Using these data, construct a 99%99% confidence interval for the average net…

A: From given data, Mean x̄=8.6 standard deviation s=1.96 n=10 C=99%   t-critical value at α=0.01 and…

Q: Suppose we take a survey of 400 students and ask how much they study per week. The result is an…

A: The 100 (1 – α)% confidence interval provides an interval estimation of the required population…

Q: The Arts and Science department states that the average GPA of their last year students is 2.80 with…

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.