manyah53611 manyah53611

30-11-2022
Mathematics

Answered

based on a sample of size 41, a 95% confidence interval for the mean score of all students, μ, on an aptitude test is from 60 to 66. find the margin of error.

Answer :

Other Questions

from a population with a standard deviation of 35, a sample of 150 items is selected. at 95% confidence, what is the margin of error for the population mean? ro

an izod impact test was performed on 20 specimens of pvc pipe. the sample mean is 1.25 and the sample standard deviation is 0.25. test the hypothesis that H0: ?

the scores on a standardized test have an average of 1200 with a standard deviation of 60. a sample of 50 scores is selected. what is the probability that the s

according to the nielsen company, the mean number of tv sets in a u.s. household was 2.24. assume the standard deviation is 1.3. a sample of 80 households is dr

the manager of a firm wants to determine if the average hourly wage for semi-skilled workers is $9 in the capital district. in order to do so, she takes a rando

consider any two numbers a, b with a < b. if x is the uniform distribution on the interval [a, b], what is the variance of x?

under what circumstances is a score that is 5 points above the mean considered a central value--meaning it is relatively close to the mean?

46. the reading test scores for the population of fifth graders is normally distributed with a mean of 55 and a standard deviation of 8. what percentage of fift

the summary of the percent of times each and every category appears for the entire sample is called the: