5. Given that the sample size is 1500 and the confidence interval of p is (0.050,0.083)....
a sample of size 1500 is used to find a confidence interval for the percentage of community college students who plan to transfer to a 4-year University? which of the following is the best interpretation of this interval? a. we are 99% confident that the true percentage of the 1500 community college students in the study will transfer to a 4-year University is between 34% and 56% b. 99% of the 1500 community college students will transfer to a 4-year...
Given the confidence interval for a mean of (74.5738,77.4262), from a sample of size 34 with a population standard deviation of σ=3.6, find the following: Margin of Error(ME)= Standard Error(SE)= Zc= what was the confidence level for this confidence interval?= (Show your work please)
The number of successes and the sample size are given for a simple random sample from a population. Use the one-proportion plus-four z-interval procedure to find the required confidence interval. n = 188, x = 157; 95% level 0.785 to 0.871 0.786 to 0.870 0.774 to 0.882 0.775 to 0.881
1. Use the given degree of confidence and sample data to construct a confidence interval for the point) population proportion p. A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confidence interval for the true proportion of all voters in the state who favor approval. 0 0.438<p0.505 0 0.444 p0.500 0 0.435<p<0.508 O 0.471 p0.472 2. Use the given data to find the minimum sample size required...
1.Given below are the number of successes and sample size for a simple random sample from a population. x= 7, n = 50, 98% level. the 98% confidence interval is from _ to _.
1. Express the confidence interval 86.5%±4.6% in interval form 2. Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 217 with 23% successes at a confidence level of 80%. M.E. = % 3.A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 6% margin of error at a 99% confidence...
Use the one-mean t-interval procedure with the sample mean, sample size, sample standard deviation, and confidence level given below to find a confidence interval for the mean of the population from which the sample was drawn. sample mean=3.0 n=41 s=5.4 confidence level=90% The 90% confidence interval about μ is ?? to ???
Use the one-mean t-interval procedure with the sample mean, sample size, sample standard deviation, and confidence level given below to find a confidence interval for the mean of the population from which the sample was drawn. x̄=4.0 n=61 s=6.1 confidence level =99% The 99% confidence interval about μ is ??? to ??? (Round to four decimal places as needed.)
4. Sample Size What is the minimal sample size needed for a 99% confidence interval to have a maximal margin of error of 0.06: if a preliminary estimate for p is 0.8? if there is no preliminary estimate for p? 5. Myers-Briggs: Actors Isabel Briggs Myers was a pioneer in the study of personality types. The following information is taken from MBTI Manual: A Guide to the Development and Use of the Myers-Briggs Type Indicator by Myers and McCaulley (Consulting...
Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 155 with 20 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. 95% C.I. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.