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Q. Example of Selection a Sample?
Ans.
Suppose a presidential election is approaching and many people are interested in knowing which candidate is most likely to win the vote. You have been assigned the task of predicting the future president one month before Election Day. How do you do it?
Solution: Here is one way that you might approach this problem. Use the 4 steps listed above.
1) The objective of this survey is to determine what percent of voters are likely to vote for the republican candidate, the democratic candidate or another candidate.
2) The variable is the way each member of the population chooses to vote. The population is all of the registered American voters.
3) You may decide to randomly dial phone numbers using U.S. area codes until you find 1000 registered voters. Ask them which candidate they plan to vote for.
4) If the sample you have chosen is a good representation of the voting American public, then you might assume that the percentage of voters in your sample who chose to vote republican will be the same percentage of voters in the entire population who will vote republican. You can assume the same for the democratic candidate as well as the other candidates.
Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3. (a) If A and B are independent then compute the probability that Both A and B happen
A second file on DocDepot named Marks.mtp contains the final exam percentages of students in ADM2304A in the Fall 2011 semester. Assume that the class can be considered a random sa
1. ABC produces a single product. Material A is added at the start of production and Material B at the end. Conversion is uniform throughout. Inspection before Material B is added.
Manchester Custom Fabricating Company uses a job order system. At the beginning of May, Manchester had two jobs in process, Job #22 (DM = $600 and DL = $780), and Job #23 (DM = $75
Ask question #Minimum 1when all factors are taken into account, an insurance company estimates that the probability of my father making a claim for damages to his pontoon boat for
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Write a sample Results section, discussing your data screening activity.
#quea national poll of 1836 respondents indicated that 36% support the NDP. Test whether this is sufficient evidence to show that the NDP support has increased since the election.
Inventory control Inventory Control is the guidance of provide, storage and convenience of items to ensure an adequate provide without excessive oversupply. It can also be known a
A.Austria invested cash $1,000 and a type writer $2,500
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