(a) If the respondents answer truthfully, what is P(0.52 < p< 0.60)? This is the probability that ôi estimates 0.56 within plus or minus 0.04. (b) In fact, 72% of the respondents said they had voted p = 0.72). If respondents answer truthfully, what is P(p z 0.72)? This probability is so small that it is good evidence that some people who did not vote claimed that hey did vote. %3D
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![4.62 Normal approximation for a sample proportion.
A sample survey contacted an SRS of 700 registered
voters in Oregon shortly after an election and asked
respondents whether they had voted. Voter records show](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5de86fce-a53d-4228-bdb0-e03545eb01c1%2Fccdfb201-b3e2-47c2-baf2-8616c67fdb47%2Fmz8pvih_processed.jpeg&w=3840&q=75)
![the Normal distribution with mean µ = 0.56 and
that 56% of registered voters had actually voted. We
will see in the next chapter that, in this situation, the
proportion p of the sample who voted has approximately
the Normal distribution with mean µ = 0.56 and
standard deviation o =0.019.
(a) If the respondents answer truthfully, what is
P(0.52 < p < 0.60)? This is the probability that ôi
estimates 0.56 within plus or minus 0.04.
(b) In fact, 72% of the respondents said they had voted
(p = 0.72). If respondents answer truthfully, what is
P(p z 0.72)? This probability is so small that it is good
evidence that some people who did not vote claimed that
hey did vote.
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5de86fce-a53d-4228-bdb0-e03545eb01c1%2Fccdfb201-b3e2-47c2-baf2-8616c67fdb47%2Fbky9lva_processed.jpeg&w=3840&q=75)
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