The Houston Chronicle conducted a citywide survey concerning the 2021 mask mandate. The newspaper took a random sample of 1000 registered voters and found that 620 are in favor of the mask mandate. Let p be the proportion of registered voters in the city that would vote for the mask mandate. A 95% confidence interval for p is  a .62 ± .0410  b .62 ± .0252  c .62 ± .0301  d .62 ± .0236  e .62 ± .0248

Q: c. Would a 90% confidence interval based on this sample be wider or narrower than the 95% interval?…

A: It is given that Sample proportion, p^ = 82% = 0.82Sample size, n = 800

Q: A poll reported 30% support for a statewide election with a margin of error of 3.96 percentage…

A: Given  p^=30%, margin of error=e=3.96% , Level of the significance=0.05

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

A: Given that Sample size n = 827 Sample proportion of students who prefer a quarter system = 0.61 The…

Q: poll reported 41% support for a statewide election with a margin of error of 1.72 percentage points.…

A: We have given that  Population proportion p =41%=0.41 Margin of error =E =1.72%=0.0172 90%…

Q: Suppose a random sample of 459 married couples found that 307 had two or more personality…

A: There are two independent samples which are two married couples. Both samples follows normal…

Q: A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for…

A: The value of x is 112 and n is 300.

Q: A poll for a statewide election has a margin of error of 2.14 percentage points. How many voters…

A: From the provided information,Margin of error (E) = 0.0214Confidence level = 99%

Q: In the measurement of support for one party, the sample data were n = 1300 and p̂ = 0.21. Compute a…

A: Given data: n = 1300  p̂ = 0.21. Confidence level = 95 %

Q: In a survey of 3700 TV viewers, 834 said they watch network news programs. Find the margin of error…

A: Solution

Q: A newspaper conducted a statewide survey concerning the 2008 race for state senai newspaper took an…

A:

Q: Based on a random sample of 400 voters in which 285 said they favored the idea of a new city…

A: Given: n = 400 x = 285 Confidence level = 97%

Q: A researcher found that 62 of the 85 people randomly selected were in favor of reducing the sales…

A:

Q: A political geographer is interested in the spatial voting pattern during the last presidential…

A: From the provided information, the followings are interpreted: The sample size, n=45. The no. of…

Q: A survey was given to a random sample of 1650 voters in the United States to ask about their…

A: It is given that, A survey was given to a random sample of 1650 voters in the United States to ask…

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: In a poll of 600 voters in a campaign to eliminate non-returnable beverage containers, 210 of the…

A: 92% CI for P = P^ ± Zx2     P^ (1-P^)nZx2= Z0.082  = NORMS INV (0.04) →Excel fu1        = 1.75P^ =…

Q: What is the correct interpretation of the confidence interval?

A: The 95% confidence interval is given by 0.480 ± 0.025 = (0.455, 0.505)

Q: A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for…

A:

Q: A survey was given to a random sample of 1350 voters in the United States to ask about their…

A: We have to find given ci.

Q: In a random sample of 250 voters interviewed while exiting from polling places throughout a state,…

A: Given that  Sample size n =250 Favorable cases x =145 Sample proportion p^=x/n  =145/250 =0.58

Q: 187 of the 561 vice presidents said they were: with the software support if a census had bee 0.2821…

A: The proportion of vice presidents satisfied  = 187/561  =0.33 n = 561 z-critical value at 0.01 =…

Q: The figure to the right shows the results of a survey in which 1005 adults from Country​ A, 1023…

A: From the provided information, Sample size of Country B (n) = 1023 Sample proportion (p̂) = 0.22…

Q: A poll reported 60% support for a statewide election with a margin of error of 3.35  percentage…

A: The question is about sample size estimationGiven :Proportion of voters who supports for a statewide…

Q: A poll reported 37% support for a statewide election with a margin of error of 4.18 percentage…

A:

Q: A few weeks before the 2016 presidential election, the Bloomberg National Politics Poll asked 1006…

A: Given : A few weeks before the 2016 presidential election, the Bloomberg National Politics Poll…

Q: A random sample of 1100 voters in a particular city found 440 voters who voted yes on proposition…

A:

Q: A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for…

A: Given Sample size=300 X=112 At 98% Z is 2.33

Q: In a past presidential election, 37,285,240 people voted for Candidate A; 37,201,620 for Candidate…

A: Percentage=value for the corresponding variable observationtotal value*100 The value range interval,…

Q: A regional survey of 561 companies asked the vice president of operations how satisfied he or she was…

A:

Q: A state legislator wants to determine whether his voters' performance rating (0 - 100)(0 - 100) has…

A: Given: n = 10 Confidence level = 95% Formula Used: Confidence Interval = d ± t*sdn

Q: The figure to the right shows the results of a survey in which 1005 adults from Country​ A, 1023…

A: For the given data The99​%confidence interval for the proportion of adults from Country B who say…

Q: A survey of 800 randomly selected adults in a certain country found that 82% believed that…

A: sample size(n)=800sample proportion()=0.82Confidence level=95%

Q: A magazine publisher wishes to determine what proportion of current subscribes will renew. The…

A: we have given that  sample size n=200 and favorable cases x=108  sample proportion p^= x/n =108/200…

Q: political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each…

A: Given that.  n=310 , Candidate A=110 , Candidate B=185 Unsure or plan to vote for another…

Q: A simple random sample of 1000 people age 18 or over is taken in a large town. It turns out that 223…

A: From the provided information, Sample size (n) = 1000 223 people in the sample are newspaper…

Q: The figure to the right shows the results of a survey in which 1005 adults from Country​ A, 1023…

A: For the given data Construct a 99​% confidence interval for the population proportion of adults s…

Q: random sample of 1000 people was taken. 450 of the people in the sample favored the candidate B.…

A: Here, random sample is 1000 and 450 people has chosen. We will find 95 % confidence Interval for…

Q: A magazine publisher wishes to determine what proportion of current subscribes will renew. The…

A:

Q: A recent study suggested that 70% of all eligible voters will vote in the next presidential…

A:

Q: A random sample of 55 voters is taken, and 28 are found to be in favour of a particular political…

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

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.