1) population proportion registered to vote ,p=22429/35093= 0.6391
2)n= 50
std error , SE = √( p(1-p)/n ) = 0.0679
sample proportion , p̂ = 0.75
Z=( p̂ - p )/SE= ( 0.75 -
0.6391 ) / 0.0679 =
1.632
P ( p̂ > 0.75 ) =P(Z > ( p̂ - p
)/SE) =
=P(Z > 1.632 ) =
0.0513
3)
n= 100
std error , SE = √( p(1-p)/n ) = 0.0480
sample proportion , p̂ = 0.75
Z=( p̂ - p )/SE= ( 0.75 -
0.6391 ) / 0.0480 =
2.309
P ( p̂ > 0.75 ) =P(Z > ( p̂ - p
)/SE) =
=P(Z > 2.309 ) =
0.0105
4)
n= 250
std error , SE = √( p(1-p)/n ) = 0.0304
sample proportion , p̂ = 0.75
Z=( p̂ - p )/SE= ( 0.75 -
0.6391 ) / 0.0304 =
3.650
P ( p̂ > 0.75 ) =P(Z > ( p̂ - p
)/SE) =
=P(Z > 3.650 ) =
0.0001
5)
as sample size increases, probability get decreases.
2 pages of questions . Round all answers to four decimal places unless directed otherwise. SHOW...
Name: MAT 152-Central Theorem Project Round all answers to four decimal places unless directed otherwise. SHOW WORK Scotland County has a population of 35,093 people. Of those, 22,429 people are registered to vote. 1. What proportion of Scotland County citizens are registered to vote? 2. If 50 people are randomly selected, what is the probability that at least 75 % of them are registered to vote? 3. If 100 people are randomly selected, what is the probability that at least...
Population 35,093, of those a2,429 people are registered to note In May of 2018, 20% of the registered voters in Scotland County voted in the primary election. 6. About how many people voted? (round to the nearest person) 7. Ir 100 people are randomly selected, what is the probability that at least 15% of them voted in the primary? 8. Ir 200 people are randomly selected, what is the probability that more than 25% of them voted in the primary?...
8. If 200 people are randomly selected, what is the probability that more than 25% of them voted in the primary? 0.2004 Jo. 20x0.80 -0.0283 1-P(p<.as). 200 -0.0386 9. In the state of North Carolina, there are 6,674,209 registered voters. In the May 2018 Primary election, 957.627 people voted. What is the population proportion of voters? (Round to the nearest percent) population proportion = 957627 /6:674209 -0.14 10. If a random sample of 30 people from North Carolina is taken,...
need help with 11,12, and 13 8. Ir 200 people are randomly selected, what is the probability that more than 25% of them voted in the primary? 0.20 0.20x0.80 -0.0283 -P(p<.05). 200 = 0.0386 9. In the state of North Carolina, there are 6,674.209 registered voters. In the May 2018 Primary election, 957,627 people voted. What is the population proportion of voters? (Round to the nearest percent) population proportion = 957627/6,674,209 0.14 10. If a random sample of 30 people...
• BIU A A E Name: MAT 152 - Central Theorem Project Round all answers to four decimal places unless directed otherwise. Scotland County has a population of 35,093 people. Of those, 22,429 people are register to vote. 1. What proportion of Scotland County citizens are registered to vote? 2. If 50 people are randomly selected, what is the probability that at least 75% of them are registered to vote? 3. If 100 people are randomly selected, what is the...
In County A 50% of the registered voters are Democrats, 30% are Republicans, and 20% are Independents. During a recent election, 35% of the Democrats voted, 65% of the Republicans voted, and 75% of the Independents voted. a) What is the probability that a randomly selected registered voter from County A voted in the recent election? b) If a randomly selected registered voter from County A voted in the recent election, what is the probability that the voter is a...
Only 14% ofregistered voters voted in the last election will voter participation change for the upcoming election? Of the 369 randomly selected registered voters surveyed, 63 of them will vote in the upcoming election. What can be concluded at the α-0.01 level of significance? a. For this study, what sampling distribution would be used? Select an answer b-The null and alternative hypotheses would be: (please enter a decimal) Hİ : [pvi-[ (Please enter a decimal) c. The test statistic? d....
1107 people, 816 people said they voted in a recent presidential election. Voting records show that 71% of eligible voters actually did vote. Given that 71% of eligible voters actually did vote, (a) find the probability that among 1107 randomly selected voters, at least 816 actually did vote. (b) What do the results from part (a) suggest? (a) P(X ≥816) ? round 4 decimals
In a survey of 1425 people, 1045 people said they voted in a recent presidential election. Voting records show that 71% of eligible voters actually did vote. Given that 71% of eligible voters actually did vote, (a) find the probability that among 1425 randomly selected voters, at least 1045 actually did vote. (b) What do the results from part (a) suggest?
In a survey of 13181318 people, 877877 people said they voted in a recent presidential election. Voting records show that 6464% of eligible voters actually did vote. Given that 6464% of eligible voters actually did vote, (a) find the probability that among 13181318 randomly selected voters, at least 877877 actually did vote. (b) What do the results from part (a) suggest?