To save money, a local charity organization wants to target its mailing requests for donations to individuals who are most supportive of its cause. They ask a sample of 5 men and 5 women to rate the importance of their cause on a scale from 1 (not important at all) to 7 (very important). The ratings for men were M1 = 6.1. The ratings for women were M2 = 4.9. If the estimated standard error for the difference (sM1 − M2) is equal to 0.25, then: Find the confidence limits at an 80% CI for these two-independent samples.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Cor d? ? me ? 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.