SOLUTION: The federal government states that 79% of Canadians are in favour of Canada's ratifying the Kyoto Accord. If this is the true proportion of Albertans favouring ratification, (Input

Question 1051405: The federal government states that 79% of Canadians are in favour of Canada's ratifying the Kyoto Accord. If this is the true proportion of Albertans favouring ratification, (Input answers to four decimal places)
(a) what is the probability that, in a random sample of 40 Albertans, exactly 24 would support ratification?

(b) what is the probability that at least 24 but no more than 34 would support ratification?


(c) what is the expected number in a sample of 40 Albertans who would oppose
ratification

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
a. 24/40= .6 in favor
z(0.6) = (0.6-0.79)/sqrt[0.79*0.21/40] = -.19/.0644 = -2.95
p-value = P(z ≤ -2.95) = .0016
|
b. 34/40 = .85
z(0.6) = (0.85-0.79)/sqrt[0.79*0.21/40] = .06/.0644 = .9317
P(z ≤ .9317) = .7327
p-value = P( -2.95 ≤ z ≤ .9317) = .8243 - .0016 = .8227 0r 82.27%
|
c. 40(.0016)= .064 none in favor
40 opposed
RELATED QUESTIONS
In Canada, 72% of the voters are not in favour of the reinstatement of the death penalty. (answered by Boreal)

It has been reported that 83% of federal government employees use e-mail. If a sample of... (answered by math_tutor2020)

2) According to Statistics Canada, 68% of Canadians owned their own home in 2003. A local (answered by Boreal)

Hi there, I had tried to solve this word problems...can't figure it out!! Everytime, I... (answered by solver91311)

Hi there, I had tried to solve this word problems...can't figure it out!! Everytime, I... (answered by mananth)

It has been reported that 83% of federal government employees use eamil. If a sample of... (answered by stanbon)

This past summer the LifeSaving Society did a survey about who was at risk in the water,... (answered by stanbon)

Recently the number of hours canadians listen to the radio has increased. Statistics... (answered by stanbon)

Of the nine city council members, four favour school vouchers and five are opposed. If a... (answered by Boreal)