Answer:
Step-by-step explanation:
a) The formula for determining the standard error of the distribution of differences in sample proportions is expressed as
Standard error = √{(p1 - p2)/[(p1(1 - p1)/n1) + p2(1 - p2)/n2}
where
p1 = sample proportion of population 1
p2 = sample proportion of population 2
n1 = number of samples in population 1,
n2 = number of samples in population 2,
From the information given
p1 = 0.77
1 - p1 = 1 - 0.77 = 0.23
n1 = 58
p2 = 0.67
1 - p2 = 1 - 0.67 = 0.33
n2 = 70
Standard error = √{(0.77 - 0.67)/[(0.77)(0.23)/58) + (0.67)(0.33)/70}
= √0.1/(0.0031 + 0.0032)
= √1/0.0063
= 12.6
the standard error of the distribution of differences in sample proportions is 12.6
b) the sample sizes are large enough for the Central Limit Theorem to apply because it is greater than 30
Native American deaths were mainly caused by the introduction of new diseases and weapons brought mainly by Europeans.
Answer:
-8 / -7 / -3 / 2 / 5 / 10
Step-by-step explanation:
you have to arrange all the numbers from the smallest number to the greatest number, but in negative, always bigger number are considered small.
9*4.25= 38.25 square inches.
Answer:
20
Step-by-step explanation:
Since they are collecting 20 pounds of cans each week, the slope is 20/1, or 20.
Hope this helps!