A poll conducted in 2013 found that 52% of all US adult Twitter users get at least some news on Twitter. However, this value was based on a sample, so it may not be a perfect estimate for the population parameter of interest on its own. The study was based on a sample of 736 adults. A 98% confidence interval is given by [0.477, 0.563] (Pew Research Center 2013b) Fill in the blanks with the appropriate values for this study.n =  p^ =

Q: During the 2006-2007 NBA season, Kyle Korver led the league by making 191 of 209 free throws, for a…

A:

Q: A study of 420,054 cell phone users found that 132 of them developed cancer of the brain or nervous…

A:

Q: Suppose a different police department says their SRS resulted in a 95% confidence interval of 10.1%…

A:

Q: Assume a researcher wants to compare the mean Alanine Aminotransferase (ALT) levels in two…

A: x¯1=69, s1=19, n1=38x¯2=32, s2=14, n2=37

Q: A sample of 22 households uses an average of 346.2 gallons of water per day, with a sample standard…

A: The sample size is 22, sample mean is 346.2 and sample standard deviation is 50.5.

Q: During the 2018 season, José Altuve of the Houston Astros had 534 at bats and a batting average of…

A: The confidence interval is the range in which the unknown value lies between them. The confidence…

Q: A technician randomly sampled repair logs for computers at a university. He wanted to find out how…

A: It is given that the proportion of computers that were repaired more than three times in the last…

Q: A new sneaker claims that it can make male athletes jump higher. A sample of 47 male athletes were…

A:

Q: A surprising number of young adults (ages 19 to 25) still live in their parents’ homes. A random…

A: Given  X1=986, n1=2253, X2=923, n2=2629

Q: A poll of 827 students at Alpha state college found that 61% of those polled preferred a quarter…

A: It is given that the proportion of the students who preferred a quarter system to a trimester…

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

A:

Q: A researcher wanted to check whether the percentage of Canadian adults with obesity has decreased in…

A: Number of Canadian adults in 2005= 75 Number of Canadian adults in 2009 = 120   significance level =…

Q: Construct a 95% confidence interval containing the population mean of the height of giraffes if a…

A: We want to find the 95% CI for population mean μ

Q: In a recent year, a sample of the South American Redeye Piranha was collected by fishermen on a…

A: We have to interprete data.

Q: Females in a random sample have an average height of 63 inches with a standard deviation of 1.5…

A: Confidence interval: Confidence interval is an interval such that the probability of the unknown…

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

A: It is given asFavourable cases, x = 20901Sample size, n = 45535Confidence level = 99%

Q: Suppose we take a SRS of high school seniors and get a 95% confidence interval that 250 to 278…

A:

Q: Assume a researcher wants to compare the mean Alanine Aminotransferase (ALT) levels in two…

A: Consider µD is the mean ALT levels for individuals who drink alcohol and the µND is the mean ALT…

Q: Twelve dieters lost an average of 7.1 pounds in 6 weeks when given a special diet plus a  herbal…

A: Given,To, construct a 95% confidence interval for the difference of the means.

Q: Joe’s Pizza Joint found that 64.2% of the 328 pizzas sold last week included pepperoni. Find a98%…

A: Obtain the 95% confidence interval for the proportion of Joe’s customers that order pepperoni. The…

Q: A random sample of 520 adults was surveyed and it was found that 130 of them exercise at least once…

A: Given information- Sample size, n = 520 We have given that out of 520 adults was surveyed and it was…

Q: One of Mendel s famous genetic experiments yielded 580 peas with 428 of them green and 152 yellow.…

A: The total number of peas taken for a genetic experiment is 580Number of yellow peas=152Number of…

Q: perimental treatments or medicines. The sample consisted of 1220 adult Internet users, and…

A: The value of z at 95% confidence level is 1.96, which can be found by using the standard normal…

Q: in a random sample of 60 students from a very large university, only 25% were able to identify…

A: Given Sample size n=60, sample proportion p^=0.25  Construct 95% CI for population proportion p

Q: If a sample has has a 94% confidence interval of (4.68,5.43), what is the 2-decimal margin of error?

A: Given information- We have given the confidence interval is- C.I = (4.68, 5.43) Lower limit = 4.68…

Q: An Internet service provider sampled 540 customers and found that 90 of them experienced an…

A:

Q: The Harvard School of Public Health conducted a survey of 2770 adults in the United States to…

A: It is given that the sample of adults, n is 2,770, the proportion of Americans who own guns is 26%…

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

A:

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: A popular weight loss program claims users will lose weight each month. Linda samples 25 dieters and…

A: We have given that,  Sample mean (x̄) = 10 pounds, standard deviation (s) = 2 pounds and sample size…

Q: A recent poll indicated that 42% of men supported raises taxes to fund additional park services.…

A: The question is about confidence interval Given : Sample prop. of men supported raises taxes to fund…

Q: According to the Government Accountability Office (GAO), women comprise of about 17% of the active…

A: Solution: Let X be the number of women enlisted in the military and n be the sample number of…

Q: company manufactures a certain over-the-counter drug. The company samples 80 pills and finds that…

A: We have given that  Sample size n = 80 Sample mean = 325.5 Standard deviation s=10.3 90%confidence…