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[DOC File]Key Fact 7 - Montgomery College
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a) Find the point estimate p1hat. Construct a 90% confidence interval for the proportion of US men who sometimes order a dish without meat, fish, or fowl. Use calculator. b) Find the point estimate p2hat. Construct a 90% confidence interval for the proportion of US women who sometimes order a dish without meat, fish, or fowl. Use calculator.
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[DOC File]Key Fact 7 - Montgomery College
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a) Compute the 90% confidence interval about µ if the sample size, n, is 45. 59.2 ± .9318 → (58.27, 60.13) For calculator feature use STAT, arrow to TESTS, and select 7:ZInterval, select Stats enter the required information, and CALCULATE. b) Compute the 90% confidence interval about µ if …
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[DOC File]MAT 155 – Lab 11
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The confidence level in this problem is 90%. So beside . C-Level. type .90. Press . ENTER. on the word . Calculate. to find the confidence interval. You should have the following output: The confidence interval would be written like: 4.84 < μ < 6.4. The 90% confidence interval for the population mean number of pups is 4.84 pups to 6.41 pups.
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[DOC File]Probability and Statistics
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HW 1 – Confidence Intervals with GDC. Directions: Find the following confidence Intervals using the calculator only. 1. The lengths of 200 fish caught in Cayuga Lake had a mean length of 14.3 inches. The population standard deviation is 2.5 inches. Find the 90% confidence interval …
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[DOC File]STAT101 Worksheet: Confidence Intervals
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Find a 95% confidence interval for the mean time spent on housework per week by all married women. A fleet of 100 airplanes has an air time (time spent flying) standard deviation of 14,9 hours. A sample of 32 of these planes gave a mean air time of 49 hours. Construct a 90% confidence interval on the mean air time for this fleet.
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[DOC File]AP Statistics
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There is a .90 probability that ( is between 25 and 30. If 100 random samples of the given size are picked and a 90% confidence interval estimate is calculated from each, then ( will be in 90 of the resulting intervals. If 90% confidence intervals are calculated from all possible samples of the given size, ( will be in 90% of these intervals. I ...
95 percent confidence interval calculator

Find 90 confidence interval calculator