1. The correlation between two variables is +0.8 for a sample of 10 observations. We wish to show there is a positive relationship between the two variables. Which of the following is a correct statement of the null hypothesis and the alternate hypothesis (H0 = null hypothesis and Ha = alternative hypothesis)?
A.H0: p = 0, HA: p > 0
B.H0: p = 0, HA: p is not equal to 0
C.H0: p = 0, HA: p < 0
D.Depends on the level of significance
2. Suppose 1,000 of the 2,000 UCLA university professors oppose the US policies in Middle East. Using the 0.95 degree of confidence, the interval estimates for the population proportion is
A.about 0.5 to 0.8.
B.between -1 and +1.
C.between 0 and 1.
D.none of the above.