the confidence interval is (0.32, 0.48) and the sample size is 100. What is x?

Q: A 93.32% Cl is given as (2.5, 3.5). From this information, find a 95% confidence interval (yes, this…

A: The provided information is as follows:The 93.32% confidence interval is (2.5,3.5).

Q: Use the Student's t distribution to find t, for a 0.95 confidence level when the sample is 27.

A: sample size=n=27 Degree of Freedom=n-1=27-1 =26 Confidence level is 0.95 Therefore the Level of…

Q: The scores on a standardized test are normally distributed. If a random sample of standardized test…

A: We know that, Confidence interval for population mean is given by :- ( x¯ -E ,  x¯+ E ) Where , x¯…

Q: If n = 220,p = 0.4,then what will be the 87.4% confidence interval for the population proportion?

A:

Q: if a sample n = 16, mean = 10.3,standard deviation is 2.6. calculate a 95% confidence interval.

A:

Q: Which of the following will decrease the width of a confidence interval for the proportion? I.…

A: It is given that the width of a confidence interval for the proportion will decrease.

Q: A 95% confidence interval for a population mean was reported to be 152 to 160. If o = 15. what…

A:

Q: Construct a confidence interval of the population proportion at the given level of confidence. X =…

A:

Q: If n=23, ¯xx¯(x-bar)=48, and s=2, construct a confidence interval at a 99% confidence level. Assume…

A: Solution-: Given: x¯=48,n=23,s=2,c=0.99 We construct C.I. at a 99% confidence level.

Q: If n = 520 and X = 416, construct a 99% confidence interval for the population proportion, p. Give…

A:

Q: If n=19, ¯xx¯(x-bar)=38, and s=8, construct a confidence interval at a 90% confidence level. Assume…

A: Given,   Sample size = 19 Sample mean = 38 Sample standard deviation = 8   Since the population…

Q: identify the t-score for a 90% confidence interval if the sample size is 31.        t=

A:

Q: If n = 440 and p 0.52, construct a 90% confidence interval. %3D Give your answers to three decimals…

A: Find z-critical value:…

Q: Use the given confidence interval to find the margin of error and the sample mean. (11.3,21.1) The…

A:

Q: If n = 420 and p (p-hat) = 0.2, construct a 95% confidence interval. Give your answers to three…

A: sample size(n)=420sample proportion(p^)=0.2confidence level=95%