For each pair of hypotheses that follows, decide whether H and H are set up correctly as the null and alternative hypotheses for a hypothesis test. If so, select "Valid" from the drop down menu. If not, select "Invalid".

1H: = 150

H: 158 Invalid or valid?

2H: 230]

H: = 230 Valid or invalid?

3 H: M = 135

H: M 135. Valid or invalid?

4 H: = 50]

H: 50 Valid or invalid?

• You evaluate the( null hypothesis or alternative hypothesis?)by assuming that it is true and testing the reasonableness of this assumption by calculating the probability of getting the results if chance alone is operating.