#6. For the next poll of the president's approval rating, we want to get a margin of error of 1% with 95% confidence. How many individuals should we sample? If you know that In the last poll his approval rate was 72% A. 775 B.7748 C.7743 D.7745 If there is no prior knowledge about the last approval rate                             A. 9600 B. 7745 C. 9601 D. 9604

Q: Suppose the percent of licensed U.S. drivers (from a recent year) that are female is 48.30. Of the…

A: The study under consideration is percentage of licensed us drivers. Let F denote the female licensed…

Q: Suppose that the second researcher conducted his survey by choosing 40 patients he knew. What…

A: It is an important part of statistics. It is widely used.

Q: According to past reports 51% of employees own a car. In a random sample of 106 employees, how many…

A: Total no.of employees(n)= 106 The percentage of employees own a car(p)= 0.51

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A:

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A: Solution of this question is

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A: We have to find sample proportion.

Q: According to past reports 48% of employees own a car. In a random sample of 250 employees, how many…

A: Total no.of employees=250 The percentage of employees own a car=0.48

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Q: One of the tasks that forensic scientists face is estimating the age of an unidentified crime…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

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Q: Of the boys in grades 4, 5 and 6 in elementary schools in Michigan, what proportion have as primary…

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Q: A survey found that​ 79% of a random sample of 1024 American adults approved of cloning endangered…

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Q: Consider the following two cases: Case 1: We developed a study to determine if smoking caused lung…

A: Introduction: It is required to identify each case as an experiment or observational study.

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A:

Q: recent study reported that 12% of people toss away about half of what they buy at the grocery store.…

A: From the given information we conduct Z test for proportion.

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A:

Q: .7. In a very hotly fought battle, at least 80% of the combatants lost an eye, at least 70% lost an…

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A:

Q: We asked students in our class about the reading time per day. We got 57 responses (the sample size…

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A:

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Q: III. The Big Smiles Portrait Studio is conducting a survey among their clients. One of the questions…

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Q: Suppose an internet marketing company wants to determine the percentage of customers who click on…

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A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.