If data set A has a larger standard deviation than data set B, data set A is more spread out than data set B. A. True B. False

Q: Would a person spending $476 on their car be considered usual or unusual if the amount spent by the…

A: Given information- Population mean µ = $347 Population standard deviation, σ = $39.58 Let, X be the…

Q: Find the mean and standard deviation of the following sample taken from a larger data set of lengths…

A: Given data, x 12 Inches 40 Centimeters 1.5 feet 15 inches 35 centimeters 1.25 feet…

Q: All of the below sets have the same mean.       Set 1-Standard Deviation=3.1       Set 2-Standard…

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Q: According to the Empirical rules rule, if there are 500 observations in a mound shaped data set the…

A: The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is a statistical…

Q: Find the mean and standard deviation for the numbers of sleepwalkers in groups of five.

A: Given: X P(x) 0 0.175 1 0.357 2 0.318 3 0.118 4 0.028 5 0.004

Q: The spread or dispersion of a set of data about the mean will be large if the standard deviation is…

A: Solution

Q: A quiz consists of 20 true or false questions. If the student guesses on each question what is the…

A: Solution: Let X be the number of correct answers and n be the number of questions. Since the…

Q: The mean for a data set is 75, the standard deviation is 4, and the z score is -0.19, what is the…

A: We have given that,  From the normal distribution with mean (mu) = 75 and standard deviation (sigma)…

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: (a). Compute the probability that a sample of 50 male graduates will provide a sample mean within…

Q: The price of stock A has a higher standard deviation than the price of stock B.  This tells that:…

A: We have given that the statement “The price of stock A has a higher standard deviation than the…

Q: The annual commissions per salesperson employed by a retailer of mobile communication devices…

A: From the provided information, Mean (µ) = $43600 Standard deviation (σ) = $4600

Q: According to Chebyshev's rule, within 10 standard deviations from the mean, lies at least of any…

A: Given Information: According to Chebyshev's rule, within 10 standard deviations from the mean, lies…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

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Q: Could the graph represent a variable with normal distribution? If so, what is the mean and what is…

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Q: If there is a small amount of variation, then the standard deviation is what

A: Standard deviation: It is defined as the positive square root of the variance. It fulfils requisites…

Q: Assume that the distribution of systolic blood pressure of adult men has a mean of 110 mmHg and…

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Q: The standard deviation may not be greater than the mean. O True O False

A: False: standard deviations may be greater than mean  example: random variable x follow standard…

Q: A data set has a mean of 60.4 and a standard deviation of 5.2    Is a value of 45 unusual? Is a…

A: From the provided information, Mean (µ) = 60.4 Standard deviation (σ) = 5.2 X~N (60.4, 5.2)

Q: The annual per capita consumption of bottled water was 30.2 gallons. Assume that the per capita…

A: Given information- Population mean, µ = 30.2 gallons Population standard deviation, σ = 13 gallons…

Q: suppose data set A has a mean of 12 and a standard deviation of 2.5  Data set B has a mean of 12…

A: The formula for coefficient of variation is, CV = (s/ x̅ ) × 100%, where s is the sample standard…

Q: The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours…

A: Given: Mean = 20 Standard deviation = 5

Q: Suppose The total daily carbohydrate intake and for all boys age 13 and 15 years old in the US is…

A: Let x be the daily carbohydrate intake for all boys age 13 and 15 years old in the US which follows…

Q: Given the mean of a normally distributed data set is 25, with  standard deviation of 5, what percent…

A: We will standardize the normal variable and then use standard Normal table to find the required.

Q: A quantitative data set has size 40. At least how many observations lie within two standard…

A: Introduction: Suppose X is a random variable with expectation, μ and standard deviation, σ. Then,…

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: If the range of a data set is 56, find the approximate value of the standard deviation, using the…

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Q: (a.) Find the point estimate for the mean and standard deviation of the salaries of all the…

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY  Now  Here Given the salary of 12…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: Topic- Probability

Q: Given that the variance for a data set 1.20, what is the standard deviation?

A: The standard deviation is calculated by taking the square root of variance. Variance is given as…

Q: A professor at a local university noted that the exam grades of her students were normally…

A: Given,mean(μ)=73standard deviation(σ)=11

Q: Runzheimer International publishes data on overseas business travel costs. It reports that the…

A: The standard deviation will be obtained as given below:

Q: a set of piano prices are normally distributed with a mean of 3000 dollars and a standard deviation…

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Q: A quantitative data set has mean 19 and standard deviation 2. Approximately what percentage of the…

A: Given that, A quantitative data set with, Mean = 19 Standard deviation = 2

Q: A quantitative data set has mean 15 and standard deviation 2. what is percentage lies between 13 and…

A: Note: Thank you for the question. For the calculation, it is assumed that the quantitative data set…

Q: Assume that a nomral distribution has a mean of 22 and a standard deviation of 7. What percentage of…

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Q: A quantitative data set has size 50. At least how many observations lie within three standard…

A: The size of the data set is 50.

Q: If a number is added to a data set which is far away from the arithmetic mean the what happens to…

A: There are two properties regarding the addition of a number to a data set and its effect on standard…

Q: A nutritionist claims that the mean tuna consumption by a person is 6 pounds per year. A sample of…

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Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: (a) Let μ denotes the population mean tuna consumption. The claim of the test is that the mean tuna…

Q: Calculate the standard deviation for the data set below 1, 3, 4. 5, 6, 9, 12, 16

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 4. The lowest and the highest data value of a data set are 12 and 28 respectively, then the…

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Q: The shape of the distribution of the time required to get an oil change at a 15-minute oil-change…

A: a) Central Limit Theorem for mean: If a random sample of size n is taken from a population having…

Q: What does the standard deviation tell you about a set of data?

A: Given To explain the standard deviation tell you about a set of data.

Q: The daily sales at a convenience store have a mean of $1280 and a standard deviation of

A: As given, the daily sales at a convenience store have a mean of $1280 and a standard deviation of…

Q: A quantitative data set has size 60. At least how many observations lie within three standard…

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Q: Which of the data sets shown below has the smallest standard deviation? 0, 1, 2, 3, 4, 5, 6 0, 0, 0,…

A: We have to find standrad deviation...

Q: A nutritionist claims that the mean tuna consumption by a person is 3.6 pounds per year. A sample…

A: Given that  Claim :  Mean tuna consumption by a person is 3.6 pounds per year Sample size (n) = 90…

Q: A nutritionist claims that the mean tuna consumption by a person is 3.5 pounds per year. A sample of…

A: (a) Let μ is defined as the population mean tuna consumption by a person. The claim of the test is…

Q: there are 75 students in the class and 20 students are getting a+ grade in the class find the mean…

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