Express the confidence interval 64.4%±4.1%64.4%±4.1% in interval form.
Q: find x squarea/2,df and xsquare 1-a/2,df for confidence level 80%, and n = 45
A: The sample size is, n = 45. The level of significance is, The degree of freedom is,
Q: A random sample of 40 students taken from a university showed that their mean GPA is 2.94 and the…
A: Obtain the 99% confidence interval for the population mean GPA of students: Denote the population…
Q: Express the confidence interval 8.5%<p<25.3% in the form of p±ME.
A: Solution: From the given information, the confidence interval for the population proportion is…
Q: Express the confidence interval 57.7%±9%57.7%±9% in interval form.
A: Given Information: Confidence interval = (57.7% ± 9%)
Q: A random sample of 75 sales employees work an average of ?̅ = 40 hours per week in a company. Assume…
A: Given information Sample size, n = 75 Sample mean, x-bar = 40 hours Population standard deviation, σ…
Q: construct a 99% confidence interval  n=34 x= 19.4 s= 4.3 Find the lower and upper bound (round to…
A: n=34 x¯=19.4 s=4.3 degrees of freedom(df)=n-1 df=34-1=33 α=1-0.99=0.01α2=0.005t0.005(33)=2.733…
Q: Express the confidence interval 0.642 ± 0.034 in open interval form (i.e., (0.155,0.855)). > Next…
A:
Q: If n=130 and p (p-hat) =0.53, find the margin of error at a 99% confidence level Give your answer to…
A: The sample size is .The sample proportion is .The confidence level is .
Q: If a researcher found that the margin of error =0.9 and the sample mean from the study was 17.7,…
A: Given, A researcher found that the margin of error ME = 0.9 and The sample mean u = 17.7 Find the…
Q: Sample A has 800 number of successes from a sample size of 805. Sample 8 has 792 number of successes…
A: Given that Sample A Sample B Sample size (n1) = 805 Sample size (n2) = 811 Number of…
Q: Express the confidence interval 22.5%<p<33.7% in the form of ˆp±ME. % ± %
A: The given confidence interval is (22.5%, 33.7%). Here, upper limit is 33.7 and lower limit is 22.5.
Q: You collect a random sample of 70 webpage load times in milliseconds (ms) from the server logs. The…
A: Given that, The degree of freedom is, df=n-1 =70-1 =69 Critical value: Using the t-table, the…
Q: A scientist claims that only 67% of geese in his area fly south for the winter. He tags 70 random…
A: The scientist's hypothesis as: H0: p=0.67 H0: p≠0.67 Calculate the sample proportion as follows :…
Q: Express trle 0.000
A: Solution: The given confidince interval is 0.666 < p < 0.888 Lower limit = 0.666 Upper limit…
Q: If n=100 and p' (p-prime) = 0.18, construct a 99% confidence interval. Give your answers to three…
A: Givenn=100p^=0.18confidence interval = 99%
Q: A sample of 36 men has a mean weight of 175 pounds with a sample standard deviation of 13 pounds.…
A: It is given that sample mean is 175 and standard deviation is 13.
Q: Express the confidence interval 48.9%±8.8%48.9%±8.8% in interval form.
A:
Q: Express the confidence interval (45.3%,59.3%)(45.3%,59.3%) in the form of ˆp±MEp^±ME. % ± %
A: The margin of error is, Thus, the margin of error is 0.07.
Q: Suppose that a garage samples 20 customers. They find the average time for there oil change is 4,029…
A: The objective of this question is to find the upper bound of the 90% confidence interval for the…
Q: If n=330 and (p-hat)=0.62, find the margin of error at 95% confidence level Give your answer to…
A: Given data,n = 340P'= 0.62The z value at 95% confidence level is zα2 = 1.96Margin of Error (E) =…
Q: Express the confidence interval (0.0847, 0.1530) in the form p± E
A: given data, confidence interval (0.0847, 0.1530)here we have to express the confidence interval in…
Q: Express the confidence interval 30.7 % <p< 43.5 % in the form of p + E.
A:
Q: Express the confidence interval (0.412,0.789) in the form of
A: Confidence interval is an interval estimate which is calculated form the sample data. Confidence…
Q: Express the confidence interval 0.444<p<0.888 in the form p+ E.
A: Obtain the point estimate of the proportion. The point estimate of the proportion is obtained…
Q: If n=360 and p (p-hat) =0.29, find the margin of error at a 95% confidence level Give your answer to…
A: Given that : Sample size (n) = 360 P(hat) = 0.29 Confidence interval is 95% We use here, Margin of…
Q: Express the confidence interval (19.1%,34.5%)(19.1%,34.5%) in the form of ˆp±Ep^±E. . % ± .…
A: The confidence is in the form: (Lower limit, Upper limit) Hence, Plug in all the values in the…
Q: Express the confidence interval 563.8
A:
Q: Express the confidence interval 46.7%±5.1%46.7%±5.1% in interval form.
A:
Q: ou collect a random sample of 66 webpage load times in milliseconds (ms) from the server logs. The…
A: Given data, n=66 x=397 s=33.7 Alpha=0.01 df=n-1=65 t-critical value is tc=2.653
Q: A field test for a new exam was given to randomly selected seniors. The exams were graded, and the…
A:
Q: Express the confidence interval 44.1%±7.6%44.1%±7.6% in interval form.
A:
Q: If n = 300 and p (p-hat) = 0.8, construct a 99% confidence interval. What is the margin of error?…
A:
Q: A random sample of 68 lunch customers was taken at a restaurant. The average amount of time the…
A: Given Data: x¯=42s=11n=68 Degree of freedom=n-1=68-1=67
Q: Express the confidence interval 74.1%±4.2%74.1%±4.2% in interval form
A: Express the confidence interval 74.1%±4.2%74.1%±4.2% in interval form
Q: Express the confidence interval 27.3%±8.3%27.3%±8.3% in interval form.
A: Given that, Confidence Interval = 27.3% ± 8.3%
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: A laboratory tested 82 chicken eggs and found that the mean amount of cholesterol was 228 milligrams…
A: Given ,x=228σ=19n=82The z-value at 95 % confidence is 1.96
Q: Express the confidence interval 71.5%±6.9%71.5%±6.9% in interval form.
A: Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…
Q: Express the confidence interval 0.814 +0.058 in open interval form (i.e., (0.155,0.855)).
A: Confidence interval : C.I = [0.814 ± 0.058] Confidence interval is the range of values , which gives…
Q: Express the confidence interval 0.784 ± 0.049 in open interval form (i.e., (0.155,0.855)).
A: Given Confidence interval is 0.784±0.049.
Q: If n = 140 and p (p-hat) = 0.8, construct a 95% confidence interval. %3D Give your answers to three…
A: We want to find the 95% CI for population proportion
Express the confidence interval 64.4%±4.1%64.4%±4.1% in interval form.
Solution
Step by step
Solved in 2 steps with 2 images
- Express the confidence interval 0.856±0.084 in open interval form (i.e., (0.155,0.855)). ___________________________Express the confidence interval (0.017,0.095) in the form of p-EExpress the confidence interval (35,59) in the form of sample mean ± ME.Construct the 9292% confidence interval estimate of the population proportion ?p if the sample size is ?=200n=200 and the number of successes in the sample is ?=118.x=118. <?<<p<Express the confidence interval (0.056,0.124) in the form of P-EA scientist claims that only 67% of geese in his area fly south for the winter. He tags 70 random geese in the summer and finds that 20 of them do not fly south in the winter. If α= 0.05, is the scientist's belief warranted? Test by using confidence interval. Round confidence interval to nearest thousandth. Show step1-step3 included conclusion.Recommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. FreemanMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman