Use the following data set for this set of questions (22a, 22b, 22c)

• The following population has these values (x):

26, 5, 18, 23, 17, 32, 26, 9, 18, 18, 20, 24, 16, 24, 25

• Additional information:

i. N = 15

ii. μ = 20.07

iii. σ = 6.89

What is the z-score for a single score for each of the following values in this data set: 5 and 32? Hint: you will have to calculate two (2) z-scores to answer this question.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Use the squared identities to simplify sin^2x cos^2x