Number of results: 7
Can someone assist me in answering this question. Use the given values of n and p to find the mimimum usual value of u-2standard deviations and the maximum ususual values u+20. n-186, p=0.13
August 5, 2007 by natalie
7) A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?
November 19, 2016 by Eli
staistics, is it right?
Find the mean, the median, and the mode for the following data. 21 21 22 22 22 26 34 Mean 335.1 rounded to 335, median 22, mode is 22 could someone tell me if I got this right?
November 14, 2013 by annie
A statistician needs to survey a sample of 50 people that is representative of voters in his community. He prepared a list of phone numbers of 50 randomly selected, expected voters. Next morning, he came to work at 8:00 and began to make calls. By 11:00 a.m., his survey was ...
August 25, 2010 by sylvia
Problem 3 John Tukey, the mathematician who came up with the idea of the stem and leaf plot, developed several other methods that were brilliant combinations of simplicity and effectiveness. One such is the box plot, also known as a box and whisker plot. It is, not ...
February 25, 2013 by A