A 90% confidence interval for the mean μ of a population is computed from a random sample and is found to be 9.00 ± 3.00. The sample is very large, so you can assume that the population standard deviation (o) is known. Which of the following could be the 95% confidence interval based on the same data?

Q: Julia enjoys jogging. She has been jogging over a period of several years, during which time her…

A: Given,sample size(n)=90sample mean(x¯)=15.61population standard…

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Q: A simple random sample of 40 items resulted in a sample mean of 25. The population standard…

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Q: Suppose we are interested in a confidence interval for the population mean scores on an exam. A…

A: We have given that,  Sample mean (x̄) = 67.89, population standard deviation (σ) = 9.90 and sample…

Q: Suppose we are interested in a confidence interval for the population mean scores on an exam. A…

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Q: 90% confidence

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Q: Suppose scores on exams in statistics are normally distributed with an unknown population mean and…

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Q: Construct a 95% confidence interval for the mean time to prepare a tax return. In the next…

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Q: A group of 65 randomly selected students have a mean score of 30.6 with a standard deviation of 5.4…

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A: Given (110.4, 111.6) (110.1, 111.9) To find the sample mean frequency we find the average of upper…

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A: Given that  Sample size (n) = 41 Sample standard deviation (s) = 6.4 Confidence level (C) = 99%…

Q: You measure 94 turtles' weights, and find they have a mean weight of 70 ounces with a standard…

A: You measure 94 turtles' weights, and find they have a mean weight of 70 ounces with a standard…

Q: The mean IQ score of a sample of 61 students selected from a high school is 93. Suppose the standard…

A: Construct the 99% confidence interval for the population mean The 99% confidence interval for the…

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

Q: If a 90% confidence interval for µ is [15, 25],  then X=?, e=?

A: Note: Hello! Thank You for the question. We are considering 'e' as margin of error. From the given…

Q: Suppose we are interested in a confidence interval for the population mean scores on an exam. A…

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Q: In a study, Group 1 was found to have an average of 53 and a population standard deviation of 13 out…

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Q: In 2002, the mean age of an inmate on death row was 40.7 years with a standard deviation of 9.6…

A: Sample mean =[x] =38.9 Standard deviation =[σ] =9.6 sample size [n] =32 Confidence interval =95%

Q: A random sample of 25 individuals finds a sample mean value of 18 and sample standard deviation of…

A: Given information- Sample size (n) = 25 Mean x̅ = 18 Standard deviation (s) = 6 Significance…

Q: Suppose a random sample of adult women has a sample mean height of x¯=64.3 inches, with a sample…

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Q: Find a 99% confidence interval for the population mean age of the Smurfs, if a sample of 50 smurfs…

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Q: If a 90% confidence interval for the mean is (75.3 to 80.9), we would reject H0:  =70 in favor of…

A: Given, 90% confidence interval (75.3,80.9) i.e. The hypothesis to be tested is given as:

Q: Suppose we gather a random sample of 20 data points. Assume the population standard deviation is 11.…

A: Given,   Sample size = 20 Sample mean = 23 Population standard deviation = 11   Since the population…

Q: number

A: Given: Mean, x=3.5 Sample standard deviation, s=1.6 Sample size, n = 219 To compute the confidence…

Q: a sample 1000 website users, the research department reports an average age of 39. If the population…

A: GIVEN DATA,n=1000x¯=39σ=9.5CI=0.90α=1-0.90=0.10α/2=0.10/2=0.05we have to find out the upper bound…

Q: 95​% confidence interval for the population mean is

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Q: A study found that a 95% confidence interval for the mean μ of a particular population was computed…

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Q: The researcher took a random sample of 50 residents and found that the mean height of men is 175cm.…

A: A normal distribution is the one which has same mean, median and mode.

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.