When a recent survey asked subjects whether it should or should not be the​ government's responsibility to impose strict laws to make industry do less damage to the​ environment, 1400 of 1496 subjects said yes. Construct the​ 95% confidence interval. Can you conclude whether or not a majority or minority of the population would answer​ yes?

Q: 3- Car and Driver Magazine tested a random sample of 9 hybrid cars and found their MPG to be 42, 51,…

A:

Q: If n = 340 and p^=0.92, find the margin of error at a 90% confidence level E= Give your answer to…

A: Given,n=340p^=0.921-p^=1-0.92=0.08α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: (a) What is the rat's sample proportion p? What is the large-sample 95% confidence interval for p?…

A: Given: Population size, n = 80 Sample size, x = 80 Sample proportion, p^: p^=8080=1

Q: If n=470 andp (p-hat) =0.69, find the margin of error at a 95% confidence level Give your answer to…

A: If the number of possible observations from the total sample size is calculated using the proportion…

Q: If n=360 and P (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given: n=360  , p^=0.48  we have to find margin of error at 95% confidence level

Q: From a survey of 400 new Wawasan Open University students chosen at random, it was discovered that…

A:

Q: If n=520 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer to…

A: Given data,n=520p=0.47z-value at 90% confidence is Zc=1.645Margin of error(E)=?

Q: If n=330 and p (p-hat) =0.92, find the margin of error at a 99% confidence level Give your answer to…

A:

Q: If n=230 and ˆp^ (p-hat) =0.31, find the margin of error at a 90% confidence level Give your answer…

A:

Q: If n=300 and ˆpp^ (p-hat) =0.52, find the margin of error at a 90% confidence level Give your…

A: Suppose p is the true proportion.

Q: If n=160 and ˆp (p-hat) =0.48, find the margin of error at a 99% confidence level

A: Given Data: p^=0.48n=160   We know that, p^-pp^(1-p^)n~ Normal(0,1)

Q: If n=240 and ˆpp^ (p-hat) =0.91, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=120 and p^ (p-hat) =0.84, find the margin of error at a 95% confidence level Give your answer…

A: Find z-critical value:…

Q: If n=210 and ˆpp^ (p-hat) =0.86, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=140 and ˆpp^ (p-hat) =0.15, find the margin of error at a 90% confidence level Give your…

A: Given, n = 140 p^ = 0.15

Q: Mr. Thomas of Wilmer Amina Carter High School (a large urban high school) wants to know what…

A: given that,possible chances (x)=85size(n)=152success rate ( p )= x/n = 0.5592

Q: In a poll of 2,500 likely voters, 966 say that the Philippines spend too little on education. Find…

A: Ans- Given the level of confidence interval   90 %                                        Then   α =…

Q: If n=130 and ôp (p-hat) =0.93, find the margin of error at a 99% confidence level Give your answer…

A: Here, the margin of error for proportion p^ is to be calculated. The formula is given by, z*p^1-p^n,…

Q: If n=270 and p (p-hat) =0.93, find the margin of error at a 90% confidence level Give your answer to…

A:

Q: If n=120 and p (p-hat) =0.31, find the margin of error at a 99% confidence level Give your answer to…

A: Sample size, n = 120 p^ = 0.31 99% confidence level

Q: If n=200 and ˆpp^ (p-hat) =0.39, find the margin of error at a 99% confidence level

A: Find z-critical value:…

Q: If n=150 and ˆpp^ (p-hat) =0.25, find the margin of error at a 90% confidence level

A: n = 150p^ = 0.2590% confidence level

Q: If n=340 and p (p-hat) =0.23, find the margin of error at a 95% confidence level Give your answer to…

A: Given,n=340p^=0.23α=1-0.95=0.05α2=0.025Z0.025=1.96

Q: According to a poll taken in a certain​ country, when adults were asked whether they were​ thriving,…

A: Given,n = 440x = 193a) Sample proportion p^ = xn    p^ = 193440 = 0.4386 b)np^ = 440 x 0.4386 =…

Q: If n=530 and ˆpp^ (p-hat) =0.51, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=270 and ˆpp^ (p-hat) =0.59, find the margin of error at a 99% confidence level Give your…

A: Given  n=270, pcap=0.59, alpha=0.01 Zcritical=2.578 at alpha=0.01 We want to find margin of error

Q: If n=110 and ˆpp^ (p-hat) =0.71, find the margin of error at a 90% confidence level Give your…

A: Sample size n = 110 Sample proportion p^ = 0.71 Confidence level = 90% Formula Used: Margin of error…

Q: If n=570 and ˆpp^ (p-hat) =0.51, find the margin of error at a 95% confidence level Give your…

A: n = 570 p^=0.51 95% confidence level

Q: If n=530 and ˆpp^ (p-hat) =0.75, find the margin of error at a 90% confidence level Give your…

A: Givenn=530p^=0.75confidence level=90%

Q: A Gallup poll asked a sample of Canadian adults if they thought the law should allow doctors to end…

A: (a) The sample proportion of Quebec adults who would allow doctor-assisted suicide is, The critical…

Q: If n=580 and ˆpp^ (p-hat) =0.59, find the margin of error at a 95% confidence level Give your…

A: Obtain the margin of error for the 95% confidence interval. The margin of error for the 95%…

Q: If n=170 and ˆpp^ (p-hat) =0.23, find the margin of error at a 99% confidence level Give your…

A: Find z-critical value:…

Q: If n=490 and ˆpp^ (p-hat) =0.54, find the margin of error at a 90% confidence level Give your…

A:

Q: If n=350 and ˆpp^ (p-hat) =0.64, find the margin of error at a 90% confidence level Give your…

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

Q: A survey​ asks, "If the husband in a family wants​ children, but the wife decides that she does not…

A: We have to create 99% confidence interval for the population proportion.

Q: If n=360 and p (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given data,n=360p=0.48Z value at 95% CI is Zc=1.96Margin of error E=?

Q: If n=570 and ˆpp^ (p-hat) =0.89, find the margin of error at a 95% confidence levelGive your answer…

A: It is given that the value of n is 570, p hat is 0.89 and the confidence level is 0.95.Here,

Q: Which of the below is the correct calculation of the 95¥% confidence interval?

A: Given that sample size n = 670 And sample proportion = 0.85 The critical value of Z at 95%…

Q: If n=200 and ˆpp^ (p-hat) =0.16, find the margin of error at a 95% confidence level Give your…

A: Given Information

Q: If n=380 and p (p-hat) =0.49, find the margin of error at a 99% confidence level Give your answer to…

A: Answer - If n = 380,   P^ = 0.49                  99% confidence interval         ⇒ α =1 - 0.99 =…

Q: If n=330 and p (p-hat) -0.27, find the margin of error at a 90% confidence level Give your answer to…

A:

Q: Do younger people use Twitter more often than older people? In a random sample of 316 adult Internet…

A:

Q: If n=130 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level Give your…

A:

Q: Construct a 99% confidence interval for the true proportion of all car license applications that…

A: Given Information:x=25n=155c=99%=0.99

Q: The z value for a 96.6% confidence interval estimate is?

A: z value for a 96.6% confidence interval estimate is?

Q: If n=190 and ˆpp^ (p-hat) =0.17, find the margin of error at a 99% confidence level Give your…

A: Given: n = 190,  p^  = 0.17  It is asked to find the margin of error at the 99% confidence level.…

Q: If n=410 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer to…

A: The random variable X follows binomial distribution. The sample size is 410. The sample proportion…

Q: If n=420 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level

A:

Q: If n=350 and p (p-hat) =0.28, find the margin of error at a 99% confidence level Give your answer to…

A: n = 350p^ = 0.2899% confidence level

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.