Suppose a random sample of 100 observations from a binomial population gives a value of population proportion = 0.83 and you wish to test the null hypothesis that the population parameter p is equal to 0.90 against the alternative hypothesis that p is less than 0 .90.
1.Calculate the value of the z-statistic for this test.
2. Find the observed significance level for the test.
3.The proportion of y explained by x is determined by (select multiple answers if applies)
a.incercept
b.coefficient of determination
c.coefficient of correlation
d.slope
