Question

For the following, indicate what type of analysis (test) you would perform and what alternative hypothesis you are testing. If you think a directional test is appropriate, make sure you incorporate this in the alternative hypothesis. In your answer, please indicate 2 things: the type of analysis AND the alternative hypothesis

Important: You may not know how to do the correct analysis. If this is the case, simply write “talk to a statistician” or “I wasn't taught this” as the “Type of analysis” and do not provide an alternative hypothesis.

You try to figure out if the total length of male and female coral snakes is the same. You measure the lengths of 47 males and 51 females. What should you do?

Answer 1

To explain this let u1(mu1) and u2(mu2) represent the mean length of the male and female snakes respectively.

As we want to test the total length of male and females snake is same..

So we make the two sided alternative hypothesis H1 ,H1: u1 not equal u2.

So we will perform an analysis for difference in the means length of the male and female snakes.

As the measurements is large ,so the sample size for both the population (male and female)is large ,so we use z distribution to test the hypothesis.