A study done by researchers at a university concluded that 70​% of all student athletes in a country have been subjected to some form of hazing. The study is based on responses from 1300 athletes. What is the margin of error and the​ 95% confidence interval for the​ study?       The margin of error is nothing. ​(Round to four decimal places as​ needed.) Find the​ 95% confidence interval.   nothing

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A: Solution

Q: Suppose​ that​ 18% of a random sample of 2307 Miami residents said that they will donate blood in…

A: we have given that sample size =n=2307 ,sample proportion =p^=18%=0.18

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A: Given data,

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A: The sample mean is 4200. Sample standard deviation, s is 900. The sample size, n is 1100.

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A: I have used Excel function = NORMSINV() for finding critical value

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A: The mean is 49 and the standard deviation is 11.

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A: Statisticians use confidence intervals to measure uncertainty in a sample variable. confidence level…

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A: The objective of this question is to construct a 95% confidence interval for the proportion of…

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Q: Practice. Testing a vaccine for HIV. Of 8198 subjects given a placebo, 74 became infected with HIV,…

A: (a)Given that,sample one, x1 =74, n1 =8198, p1= x1/n1=0.009sample two, x2 =51, n2 =8197, p2=…

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A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

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A: Solution: Given information: n1= 145x1=33p^1=x1n1=33145=0.23n2=114x2=12p^2=x2n2=12114=0.105

Q: ool graduates, and ask them their annual incomes. They give you an average income of $35,000 per…

A: As the population standard deviation is known, we will use z distribution. The value of z at 95%…

Q: 14. Direct Mail A survey shows that 51% of adults prefer to receive advertisements through the mail.…

A: Given percent of adults prefer to receive advertisements through the mail=51%Margin of error(E)=5.2%

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A: We have to construct ci.

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A:

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A: Solution Here is two different questions I am solving exercise 2

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A:

Q: A &B

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Q: In a survey, 25 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 14 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 25 people were asked how much they spent on their child's last birthday gift. The…

A: As per given by the question, There are 25 people were asked how much they spent on their child's…

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A: The sample mean is 32 and standard deviation is 14.

Q: Almost all employees working for financial companies in New York City receive large bonuses at the…

A: Here we have,   sample size : n = 63sample average bonus: x¯ = $50,000sample standard deviation : s=…

Q: Several years ago, 50% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given Data Sample Size, n = 1105 Number of successes, x = 491.0 confidence…

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Q: Several years ago, 50% of parents who had children in grades K-12 were satisfied with the quality of…

A: Solution

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A: Given that,  23 people were asked how much they spent on their child's last birthday gift.  Sample…

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A: From the provided information, The data values are as follow: 9, 12, 13, 10 and 10 Sample size (n) =…

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.