I now test was given to a simple random sample of 82 students at a certain college. The sample mean score was 105.6. Scores on this test are known to have a standard deviation =1. It is desired to construct 90% interval for the mean in scores of students at this college. What is the point estimated? The point estimate is Find the critical valve The critical valve is Find the standard error. Round to four decimal places The standard error is Find the margin of error. Round to two decimal places. The margin of error is Construct the 90% confidence interval. Rounds to one decimal place. The confidence interval are Is it likely that the population mean u is greater than 100? Yes or no it is or is not likely that the population mean u is greater than 100

Q: The mean wingspan of a sample of 31 birds of a particular species is 30 inches.  The standard…

A: Sample size n =31 Sample mean=30 Population standard deviation =4

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A: Introduction: Define X1, X2 as denoting a randomly selected observation from Population 1 and…

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A:

Q: How large a sample is required for you to be 95% sure that the estimate of the mean invoice is…

A: Answer: From the given data, Confidence level = 95% ⇒c = 95% = 0.95 Margin of error (E) = 3…

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Q: The amount of time that people spent at Grover Hot Springs is normally distributed with a mean of 68…

A: Solution

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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 267 days…

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A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 267 days…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 266 days…

A: The mean is 266 and the standard deviation is 17.

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 70…

A: We are reauthorized to answer three sub parts at a time, since you have not mentioned which part you…

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A: Given population mean μ=0.46  Population standard deviations σ=0.12

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A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 10

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Q: The average American consumes 94 liters of alcohol per year. Does the average college student…

A: From the provided information, The sample size (n) = 11 The test statistic = -3.490.

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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 264 days…

A: The complete solution is given below

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A: Given that, Mean M =39 X=35, prefer a standard deviation of s= 2 or s=8:

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A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days…

A: We have given that Mean(µ) = 269Standard deviations (σ) = 12X ~ N (µ, σ )= N(269,12)

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 264 days…

A: 95% Area = (μ-Zα/2σ , μ+Zα/2σ)

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days…

A: Solution-: Given: μ=268,σ=13 Let, X= The length of pregnancies in a small rural village ∴X→…

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A: In APA format:"" represents the mean."" represents the standard deviation.In summary, the…

Q: The distribution of IQ scores of the population is normally distributed with a mean of 100 and a…

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Q: According to her doctor, Mrs. Brown's cholesterol level is higher than only 15% of the females aged…

A: Z = x- μσ~ N(0,1)

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Q: Cameron had a score of 41 on a physics test.  Originally, the mean score was 36 and standard…

A: Given: Cameron’s score = 41 Mean μ = 36 Standard deviation σ = 2 Formula Used: Z-score = X-μσ

Q: From generation to generation, the average age when smokers first start to smoke varies. However,…

A: Consider that μ is the population mean age when smokers first start to smoke.

Q: The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30.…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 270 days…

A:

Q: weight of 1152 pounds with 11. Me sometimes C mean of 100 and a ts, wha genius? in Exercise 6 had a…

A: According to our guidelines we are answering only first question (12.) for you. Kindly repost the…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Solution: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally…

Q: The standard deviation of a variable is 15 . If a sample of 70 individuals is selected, (a) Find…

A: From the provided information, Standard deviation (σ) = 15 Sample size (n) = 70