1. A sample is selected from a population with a mean reading score of u = 50. A new reading strategies
treatment is administered to 16 individuals in a sample (n=16). The reading scores after the reading
strategies treatment is found to be M = 55 and SS = 960. Was the reading strategies treatment
effective?
a. Use a two-tailed test with a = .05. Conduct the four steps for hypothesis testing and label
each step: Step1, Step 2, Step 3, and Step 4.
b. Calculate Cohen's d.
c. Are the data sufficient to conclude that thier is a significant difference? Write your
answer in the form of a sentence.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?