Use the formula to find the standard error of the distribution of differences in sample means, . Samples of size 105 from Population 1 with mean 88 and standard deviation 12 and samples of size 70 from Population 2 with mean 78 and standard deviation 16
Round your answer for the standard error to two decimal places.

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −