Five hundred draws are made at random with replacement from a box with 10,000 tickets. the average of the box is unknown. however, the average of the draws was 71.3, and their sd was about 2.3.
true or false, and explain:
a) the 71.3 estimates the average of the box, but is likely to be off by 0.1 or so.
b) a 68%-confidence interval for the average of the box is
c) about 68% of the tickets in the box are in the range

Find the value of the cosine for angle a

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.