following statistics are calculated by sampling rence the itable and the g table.) 156, n1 = 5; 2 = 161, n2 = 5; 3 = 150, n3 se Fisher's LSD method to determine which po Round final answers to 2 decimal points.) ppulation Mean Confidence Interval

Consider the simple random sample of vehicle speeds below. Use the data to construct 3 different confidence intervals. We'll keep the sample size constant and vary the level of confidence, amd note the pattern that appears. Round results to 1 decimal place. * = 63 mph s = 10 mph n = 50 1. Construct the 80% confidence interval for vehicle speeds. 2. Construct the 90% confidence interval for vehicle speeds. 3. Construct the 99% confidence interval for vehicle speeds In 1- 2 complete sentences describe the effect increasing the level of confidence on the confidence interval.

Please answer question a, b and c

Use the confidence level and sample data to find a confidence interval for estimating the population μ. Round your answer to two decimals. 13) A random sample of 100 individuals, their blood glucose level has been measured, obtaining a mean of 120 mg/dl and a standard deviation of 30 mg/dl. a) What is the best point estimate of the population mean? b) Construct a 95% confidence interval for the mean blood glucose level of all individuals in this population.

Use the following data set: 40, 33, 77, 12, 23, 56, 23, 19, 29 (minutes). Assume the data is approximately bell shaped and a sample.

Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 1004 and x = 544 who said "yes." Use a 90% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) Standard Normal (z) Distribution Z 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 12 .00 5000 5398 .5793 .6179 .6554 .6915 .7257 .7580 .7881 .8159 .8413 .8643 .8849 0022 0 Z Cumulative Area from the LEFT .01 .5040 .5438 .5832 .6217 .6591 .6950 .7291 .7611 .7910 .8186 .8438 .8665 .8869 0040 .02 .5080 .5478 .5871 .6255 .6628 .6985 .7324 .7642 .7939 .8212 .8461 .8686 .8888 POSITIVE Z Scores ՈՈՐԸ .03 .5120 .5517 .5910 .6293 .6664 .7019 .7357 .7673 .7967 .8238 .8485 .8708 .8907 anon .04 5160 .5557 .5948 .6331 .6700 .7054 .7389 .7704 .7995 .8264 .8508 .8729 .8925 0000 .05 .5199 5596 .5987…

7. use the given confidence interval to find the margin of error and the sample proportion.  a. (0.719,0.745) b. (0.753,0.777)

Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interval for a sample of size 317 with 89 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.