2. A professional racing team is holding tryouts at its test track. The team requires its drivers to have an average lap time of at most 133 seconds at its test track. The team will use a one sample z-test of significance to determine if they should hire a new driver.   An amateur driver completes 10 timed laps of the test track with an average lap time of 140 seconds. If the standard deviation of all lap times at this track is 4.5 seconds, what is the value of the test statistic? Round your answer to two decimal places. Answer value    Please show work!!!

Q: Consider the following 10 exam scores: 28, 57, 58, 64, 69, 74, 79, 80, 83, and 85 Find the…

A: According to the provided information, the exam score is as follows: 28, 57, 58, 64, 69, 74, 79, 80,…

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Q: Calculate the mean, standard deviation, and variance for the following five scores: 9, 4, 7, 1, 4.

A: Considering the scores as population. The population mean is, μ=∑XN=9+4+7+1+45=255=5 Thus, the…

Q: Calculate the mean, standard deviation, and variance for the following five scores: 9,4,7,1,4.

A:

Q: A researcher measures the number of hours college students spend on social media in a day. 10…

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Q: 2, 5, 9, 13, 17, 202. Find the standard deviation for the above sample data.

A:

Q: According to the U.S. Bureau of Labor and Statistics, realtors in Michigan make $65,330 on average.…

A: Answer: From the given data, Sample size (n) = 30 Sample mean (x⏜) = $ 70125 Population standard…

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A: Given,Confidence Interval = 95%ME= Margin of Error =1.5σ=Population Standard Deviation=5.3

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A: Dear student, If you find this solution helpful please upvote ? it.

Q: Of the 500 people who took the civil servant acceptance test in one government agency, the average…

A: We have given that  Mean=67.5 Standard deviation=5.2  Find A) P(55.6<x<61)B) P(x>65)

Q: give the sample standard deviation of this data set: 20, 25, 35, 40

A: Sample Standard deviation:   If the standard deviation is calculated for sample then it is called as…

Q: The daily rates of a sample of eight employee at POL Corp. are $550, $420, $560, $500, $700, $670,…

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Q: what is the mean and standard deviation of the following sample:  8, 1, 5, 1, 5

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Q: Five cars of the same year and model were tested for gas mileage in highway driving and the results…

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Q: Find standard deviation of each sampling distribution

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Q: Seven students on an intramural team weigh 179 ​lb, 177 ​lb, 174 ​lb, 185 ​lb, 167 ​lb, 186 lb and…

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Q: Consider a sample with data values of 26,24,21,17,30,33,28 and 24 . Compute the variance, and…

A: A set of data values is given.The data values are 26, 24, 21, 17, 30, 33, 28 and 24.

Q: Disability causes 48% of all mortgage foreclosures. Given that 20 mortgage foreclosures are audited…

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Q: The Sum of Squared Errors for a data set of 18 numbers is 64. What is the standard deviation?

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Q: Find the standard deviation of the following data: 13,18,13,14,13,16,14,21,13

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Q: Imagine that every elementary school in California is measured on several characteristics and then…

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Q: What is the standard deviation of the following sample data:  40, 24, 45, 15, 25, 21.   Round to 2…

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Q: What is the standard deviation of the following sample data:  37, 29, 33, 38, 37, 43.   Round to 2…

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Q: t is known that the average time required to complete a test exam is 80 minutes and the standard…

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Q: what is the mean and standard deviation of the following sample:  18, 1, 5, 1, 5

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Q: Find the mean, median, mode, range, variance and standard deviation.

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Q: - Calculate the Quartile Deviation (Q.D) and coefficient of Q.D. for the data below: ( 230 , 620 ,…

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Q: Compute standard deviation for the following data : 5, 8, 7, 11, 9, 10, 8, 2, 4, 6.

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Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

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Q: What is the standard deviation of the following sample data:  40, 49, 23, 47, 40, 17.

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