1 664 000 students took the SAT in 2012.lof them, 778 000 were male and 886 000
ID: 3340098 • Letter: 1
Question
1 664 000 students took the SAT in 2012.lof them, 778 000 were male and 886 000 were female 1. We want to decide whether the proportion of men with scores above 480) on the SAT writing tests is the same as the the proportion pu, of women with scores above 480 on the SAT writing tests. So we take as our ve hypothesis Pn P We decide to test this at level null hypothesis Ho that pP and as our of significance 0.05. We (a) State the value of Nm (b) State the value of N (e) State the value of nm (d) State the value of nu (e) State the value of 2m (f) State the value of z (g) Find 1556 (h) Find p. (0) Find the pooled estimste p- +Explanation / Answer
Answer to the question)
Nm = population size of males
Nm = 778000
Nw = population size of women
Nw = 886000
.
nm = sample size of males
nm = 1556
.
nw = sample size of women
nw = 1773
.
xm = number of males with above 480
xm = 734
.
xw = number of women with above 480
x w= 949
.
pm^ = 734 /1556
pw^ = 949 / 1773
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