QUESTION 20 Find the confidence level related to the critical value za2=1.476 O 91% 77% 68% O 86%
Q: A recent study of a very large number of parents on cyberbullying showed that a 95% confidence…
A: Given data,For 95% CILower limit=0.1238Upper limit =0.2036Proportion (p)=?
Q: If n=28, ¯xx¯(x-bar)=48, and s=2, find the margin of error at a 90% confidence level Give your…
A: Margin of error = E E = tCriticalsn
Q: QUESTION B Find the confidence level related to the critical value t12 1.678 where the sample size n…
A: given data find level of ci related to tα2 = 1.678 and n = 15
Q: If n=26, ¯xx¯(x-bar)=31, and s=8, find the margin of error at a 99% confidence level Give your…
A:
Q: If n=31, ¯xx¯(x-bar)=38, and s=4, find the margin of error at a 95% confidence level Give your…
A: Here, the population standard deviation is unknown. Hence, t - distribution is appropriate to use as…
Q: A magazine provided results from a poll of 2000adults who were asked to identify their favorite pie.…
A: There are 2000 respondents 11% chose chocolate pie, and the margin of error is ±3 percent. The value…
Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…
A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.
Q: Question / Use the confidence level and sample data to find a confidence interval for estimating the…
A: It is an important part of statistics. It is widely used in estimation theory as well as in testing…
Q: A survey by Stats SA found that 297 of 660 randomly sampled Mangaung households are headed by women.…
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Q: Out of 100 people sampled, 6 had kids. Based on this, construct a 95% confidence interval for the…
A: The random variable people with kids follow binomial distribution. The sample size is 100. The…
Q: Find the confidence level related to the critical value ta/2= -2.45 where the sample size n =10. O…
A: GIVEN DATA, tα/2=-2.45n=10df=n-1=10-1=9confidence level is =?
Q: Find the a/2 (the area in one tail outside of the confidence interval) and the critical value z a…
A: In question, We'll find the z critical value for one tailed at 90% confidence level. The solution…
Q: For a confidence level of 80% with a sample size of 32, find the critical t value.
A: Given that n =32, alpha =0.2
Q: If n=12, ¯xx¯(x-bar)=41, and s=10, find the margin of error at a 80% confidence level Give your…
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Q: The Arab Youth Survey showed that a 95% confidence interval of the proporrtion of young Arabs who…
A: From the provided information, Confidence level = 95% The confidence interval is (0.4973, 0.5942).
Q: Determine the confidence level. Determine the confidence level for confidence interval shown in the…
A: It is given that α/2 = 0.10
Q: The price of iPhone 13 pro max is recorded at a random sample of 40 electronics stores in UAE. The…
A: given data n = 40 90% ci for μ = (3026,4501) margin of error = ?
Q: Percentage of dividend income: % 2. Number of shares: 3. Amount of income: $
A:
Q: You are taking a 10 question multiple-choice test. If each question has four choices and you guess…
A: Given Data Probability of success,p =1/4 = 0.25 Probability of failure,q=(1- 0.25 )=…
Q: Ali is interested in estimating the mean amount spent per day in a shopping mall based on 16…
A: Sample size: customers.And it is known that the amount spent per day in a shopping mall is normally…
Q: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…
A: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…
Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie.…
A: The provided information is p=0.14q=1-p=1-0.14=0.86n=500E=3%=0.03p-Represents the proportion of…
Q: question 2 A simple random sample of 70 items from a population with 7 resulted in a sample mean…
A: The given data is as follows:Sample size, Population standard deviation, Sample mean,
Q: QUESTION 28 Find the confidence level related to the critical value Za/2= -1.54. O 91.8% 99.5% 87.6%…
A: given data critical value Zα/2=-1.54confidence interval level is =?
Q: If n=31, ¯xx¯(x-bar)=31, and s=3, find the margin of error at a 90% confidence level Give your…
A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…
Q: An advertisement agent computed 90%, 95%, 97%, and 99% confidence intervals for the mean lifetime of…
A: given data we constructed 4 different confidence intervals. 90% ci, 95% ci, 97% ci, 99% ci. the…
Q: If n=14, ¯xx¯(x-bar)=44, and s=3, find the margin of error at a 98% confidence level Give your…
A: Margin of error = The margin of error (MOE) expresses to the maximum expected differences between…
Q: Find the critical value for 93% confidence interval, n = 160 and HA: ρ ≠
A: Given n=160 and confidence level is 93$%. Test is two tailed.
Q: Determine the critical value Za/2 that corresponds to the given level of confidence. 98% O 2.33 O…
A: Given, confidence level = 98.0 % Need to find Critical value z
Q: Question 9: A study was run to determine the proportion of adults that feel sleep-deprived. A 95%…
A: Given that, a study was run to determine the proportion of adults that feel sleep-deprived. A 95%…
Q: Out of a survey of 3200 people who own a hot tub, only 70% use it at least once each week. This was…
A: Solution: From the given information, p-hat is 70% and the margin of error is E=1.7%.
Q: Question 3 If n = 28, a = 31, and s = 15, construct a confidence interval at a 90% confidence…
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Q: Out of 100 people sampled, 39 had kids. Based on this, construct a 90% confidence interval for the…
A: Given The data is as follows: Sample size, n=100 No. of people with kids, x=39 CL=0.90
Q: If n=16, ¯xx¯(x-bar)=30, and s=10, find the margin of error at a 90% confidence level Give your…
A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…
Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…
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Q: Find the critical value Zα/2 that corresponds to the given confidence level. 99% Za/2 = (Round to…
A: Confidence Level=99%
Q: Find the confidence level related to the critical value Z2=1.759 a/2 97.1% 92.1% 94.7% 98.3%
A: Given, the critical value is 1.759.
Q: Question 5 If n=27, ¯x¯(x-bar)=30, and s=16, construct a confidence interval at a 99% confidence…
A: According to the given information, we have Sample standard deviation = 16 Sample size = 27 Sample…
Q: If n=17, ¯xx¯(x-bar)=35, and s=2, find the margin of error at a 95% confidence level Give your…
A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…
Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite…
A: It is given that the sample size is 500.
Q: If n=14, ¯xx¯(x-bar)=33, and s=8, find the margin of error at a 80% confidence level Give your…
A:
Q: A and B are disjoint events. Suppose that P(BC) = 3/5 and P(A n B°) = 1/3. Please find P(A° n B°) =?…
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Q: Find the confidence level related to the critical value f/2-1.81 where the sample size n =9. 091.2%…
A: Given, the critical value is -1.81 and the sample size is n=9.
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- If n=28, I(x-bar)=35, and s=3, find the margin of error at a 95% confidence level Give your answer to two decimal places. Ouestion Heln:If n=32, ¯xx¯(x-bar)=30, and s=5, find the margin of error at a 95% confidence levelGive your answer to two decimal places.Find the 99% confidence interval given the ff:z=2.575 n=100 x=150 o=4
- If n=17, ē(x-bar)=44, and s=8, find the margin of error at a 95% confidence level Give your answer to two decimal places.QUESTION 29 Find the confidence level related to the critical value f/2 -2.95 where the sample size n =8. O 93.9% O 96.5% O 99.9% O 97.9%A magazine provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 respondents, 14% chose chocolate pie, and the margin of error was given as ±4 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 90%, what is the value of α?
- If n=20, ¯xx¯(x-bar)=46, and s=2, find the margin of error at a 90% confidence levelGive your answer to two decimal places.QUESTION 26 In a survey of 800 parents in UAE, 622 said that moral education has a positive effect on attitude towards others. Find the margin of error (E) for a 99% confidence interval for the proportion of parents who believe that moral education has a positive effect. Round your answer to four decimal places.QUESTION TWO To estimate the mean monthly cost of room and board, a random sample of 150 students is taken. Suppose that S-4900 and X=K330. Calculate the following confidence intervals for µ: (a) 95% (b) 99%
