You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 66 ​dates, the mean record high daily temperature in a certain city has a mean of 85.69°F. Assume the population standard deviation is 13.60°F.   The​ 90% confidence interval is The​ 95% confidence interval is   Which interval is​ wider?

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A: Sample size n = 80 Sample mean x = 85.14 Sample standard deviation s = 12.8

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Q: Use the given confidence interval to find the population proportion margin of error  0.09<?<0.33

A: Form the given data we have, p^+MOE = 0.33           ......(1)p^-MOE = 0.09           ......(2)

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A: We have given that  95% C.I = ( 740 , 920 ) Standard deviation =150

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A: Given: σ = 8.3 grams  n = 25

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A: Solution  We find confidence interval by excel

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A: We have given that, Sample size n = 1097 Sample mean = 3.16 Sample standard deviation = 1.91 The 95%…

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A: We want to find the value of n  Given  740≤μ≤920 σ=150, ɑ=0.05

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A: It's a t distribution as the population standard deviation is unknown

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A: The correct option is: C) No.Given information:

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A: It is given that the mean is 85,252 and the standard deviation is 8,413.

Q: ou are given teh sample mean and the population standard deviation. Use this information to…

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Q: Construct the indicated confidence interval for the difference between the two population means.…

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Q: Assume that you want to construct a​ 95% confidence interval estimate of a population mean. Find an…

A: 95% CI  for μE=3.4S=55.3n=?For 95% CI,  P(-z&lt;μ&lt;z)=0.95  ∴z=1.96       ∵z table

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A: For 90% confidence level,α=1-90%=1-0.9=0.1 The value of z at α=0.1 in lower tail is 1.282.

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Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

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Q: A random sample of 93 observations produced a mean x = 25.5 and a standard deviation s 2.8. a. Find…

A: Given  n=93, sample mean x̄=25.5, s=2.8

Q: Complete the following senteces with the correct answer regarding a confidence interval for the mean…

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Q: Which of the following is the 99% confidence interval estimation for the mean monthly rental fee for…

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A: The sample size is 64, sample mean is 5400, and population standard deviation is 260.

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

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A: In this question we have to find the Margin of error if the standard deviation is 0.45.

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Q: Use the given degree of confidence and sample data to construct a confidence interval for…

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Q: I collect a random sample of size n from a population and from the data collected compute a 90%…

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Q: Construct a 94% confidence interval for the population mean, μ. Assume the population has a normal…

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Q: If a sample of 4 fish from my pond has mean weight 157 grams with a standard deviation of 8.3 grams…

A: Given: n=4, x=157 and s=8.3   At 99% confidence level, the value of z is 2.576.

Q: In the library of a university, the mean duration (in days) of the borrowing period of the books is…

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Q: Use the given data to find the 95% confidence interval estimate of the population mean ?. Assume…

A: Solution-: Given: We find 95% C.I. for  the population mean

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.