Algebra 2: Prob and Stats
 👍
 👎
 👁
Respond to this Question
Similar Questions

stats
Suppose x has a normal distribution with sigma = 1.2. Find the minimal sample size required so that for a 95% confidence interval, the maximal margin of error E = 0.5.

statistics
A simple random sample of 40 items resulted in a sample mean of 25. The population standard deviation is 5. a. What is the standard error of the mean (to 2 decimals)? b. At 95% confidence, what is the margin of error (to 2

Statistics
Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 100, with a sample size of (i) 400, (ii) 1600. What is the effect of the sample size? (b) Find the

ap statistics
You are sampling from a population with a known standard deviation of 20 and want to construct a 95% confidence interval for the mean with a margin of error of no more than 4. What is the smallest sample size that will produce

statistics
Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long

statistics
A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is 15. a) Compute the 95 % confidence interval for the population mean. b) Assume that the same sample mean was obtained from a

Statistics
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: 0.06; confidence level 90% ^p and ^q unknown n= (round up to the nearest integer)

statistics
what are the mean and standard deviation of a sampling distribution consisting of samples of size 16? these sameples were drawn from a population whose mean is 25 and who standard deviation is 5. a. 25 and 1.25 b. 5 and 5 c. 25

Math (Statistics)
PLEASE GET BACK TO ME ASAP!! 1) Use the given data to find the minimum sample size required to estimate the population proportion. Margin of error: 0.04; confidence level: 94%; q̂ unknown a. 486 *** b. 572 c. 553 d. 587 2) Use

statistics
We guess, based on historical data, that 30% of graduating highschool seniors in a large city will have completed a firstyear calculus course. What's the minimum sample size needed to construct a 95% confidence interval for a

Stats
What is the minimal sample size needed for a 99% confidence interval to have a maximal margin of error of 0.06 if there is no preliminary estimate for p?

Statistics (42)
A simple random sample of 60 items resulted in a sample mean of 96. The population standard deviation is 16. a. Compute the 95% confidence interval for the population mean (to 1 decimal). ( , ) b. Assume that the same sample mean
You can view more similar questions or ask a new question.