A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1227 males​ surveyed, 181 responded that they had at least one tattoo. Of the 1003 females​ surveyed, 137 responded that they had at least one tattoo. Construct a 95 ​% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. Let p 1 represent the proportion of males with tattoos and p 2 represent the proportion of females with tattoos. Find the 95 ​% confidence interval for p 1 minus p 2 . The lower bound is . The upper bound is

Q: survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1211 males​surveyed,…

A: We have to create 99% confidence interval for difference in proportion and we have to find if…

Q: In a survey, people were asked whether they thought sun went around the planet Earth or vice versa.…

A: (a)   Obtain the proportion of people in the survey who believed the sun went around earth. The…

Q: Of 380 randomly selected medical students, 21 said that they planned to work in a rural community.…

A: Sample proportion=p^=21380z=critical value for 95% confidence interval=1.96n=sample size=380

Q: A department chair wanted to know whose students performed better on a common pass/fail final exam:…

A: p1 :  proportion of students passed in smith's  class p2 :  proportion of students passed in Jones's…

Q: Educational Television In a random sample of 205 people, 143 said that they watched educational…

A:

Q: In a survey of 2255 adults, 741 say they believe in UFOS. Construct a 95% confidence interval for…

A:

Q: A survey of 100 men found that 68% said they find it hard to buy holiday gifts that convey their…

A: Solution

Q: A survey was conducted that asked 984 people how many books they had read in the past year. Results…

A: Sample size is, Sample mean is, Sample standard deviation is, Confidence level is The objective is…

Q: In a survey of 4061 ​adults, 738 say they have seen a ghost. Construct a​ 99% confidence interval…

A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have…

Q: Of 400 randomly selected medical students, 21 said that they planned to work in a  rural community.…

A:

Q: A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1204 males​…

A:

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 2270 adults, 715 say they believe in UFOS. Construct a 95% confidence interval for…

A: x = 715 n = 2270

Q: In a survey of 3332 adults aged 57 through 85​ years, it was found that 80.7​% of them used at least…

A:

Q: In a 2008​ survey, people were asked their opinions on astrology​ - whether it was very​ scientific,…

A: We have given that people were asked their opinions on astrology​ - whether it was very​ scientific,…

Q: In a random sample of 600 adults, 270 described themselves as vegetarians. Construct a 99%…

A: In a random sample of 600 adults, 270 described themselves as vegetarians.

Q: In a survey of 2318 adults, 747 say they believe in UFOs. Construct a 99% confidence interval for…

A: The 90% confidence interval for the population proportion is between (0.297,…

Q: In a survey, people were asked whether they thought sun went around the planet Earth or vice versa.…

A: a. It was found that out of the 2152 people, 389 thought the sun went around earth. The sample size…

Q: Of 848 children surveyed, 144 plan to join a volunteer group in the future. Construct a 90%…

A: We have given that n=848, X=144, C.I=90%=0.90

Q: A survey of 95 families showed that 40 of the families owned at least one tv. a. Find the 90%…

A: Number of families in a sample n =95 Let X be the number of families owned at least one tv = 40 p =…

Q: In a survey of 2291 ​adults, 708 say they believe in UFOs.   Construct a 90% confidence interval for…

A:

Q: The principal randomly selected six students to take an aptitude test. Their scores were: 88.0 84.1…

A: Solution: Let X be the score. The given data is 88, 84.1, 74.9, 83.2, 83.7 and 85.5.

Q: A survey of 360 college seniors found that 305 wish they had spent more time studying. Find a 94%…

A: Givensample size(n)=360x=305p^=xn=305360=0.8472confidence interval = 94%

Q: in a survey of 692 lesbian, gay, bisexual, or transgender U.S adults 378 said that they consider…

A:

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1222 males surveyed,…

A: From the given information, Consider, p1 and p2  be the proportions of males and females n1=1222,…

Q: We randomly sample 218 individuals and find that 97 have a college degree. a.)Construct a 95%…

A:

Q: researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 480…

A: We have given that  Sample size n= 480 Sample proportion p^= 0.23 95% confidence interval

Q: A survey of 41 students in grades 4 through 12 found 63% have classroom Wi-Fi access. Find the 99%…

A: It is given that sample size (n) is 41 and the sample proportion value is 0.63.

Q: Out of 100 people sampled, 40 had kids. Based on this, construct a 99% confidence interval for the…

A: From given data we have : x=40 n=100 thus, p^=xn  =40100  =0.4

Q: A survey was conducted that asked 963 people how many books they had read in the past year. Results…

A: From the provided information, Sample size (n) = 963 Mean (x̄) = 14.7 Standard deviation (s) = 17.8…

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.