Assume that a normal distribution of data has a mean of 16 and a standard deviation of 4 Use the empirical rule to find the percentage of values that lie below 28 What percentage of values lie below 28? %

Q: If the mean of a problem of 44 and the standard deviation is 11 HOW would I calculate the range at…

A: According to Chebyshev's theorem 36% of the data will lie within 1.25 standard deviation from the…

Q: Male and female populations of tortoises under 80 years old are represented by age in the table…

A: Here the given table is : Age males females…

Q: Mean of 100 items is found to be 30. If at the time of calculation two items are wrongly taken as 32…

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Q: The following table gives information on the amount of sugar (in grams) and the calorie count in one…

A: (a)   Determine the value of standard error.   The value of the standard error is obtained below…

Q: After 6 points have been added to every score in a sample, the mean is found to be M = 70 and the…

A: 15.a.Given:New mean M=70New Standard deviation s=3Constant added=6The addition of constant value to…

Q: Suppose X1, ..., Xn are iid with PDF f (x | 0) = 40ªx-5. x > 0, where 0 > 0. Find the method of…

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Q: The IDOLE Company has two assembly lines in its Hamburg plant. Line A produces an average of 335…

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Q: A normal random variable X has a mean = 100 and a standard deviation = 20. For X = 110, the…

A: Given that Let X be normal random variable with mean 100 and standard deviation 20. And X=110

Q: Hello,  the answer to point d is as follows. However, I am not sure how we got the exact values for…

A: Mean = 206.45 S. D (sigma) = 66.42 Here we us standard normal distribution properties.

Q: 6.9 7.0 7.3 7.3 7.7 7.7 7.8 D Bank A (single line): 6.6 6.6 6.7 Bank B (individual 4.4 5.4 lines):…

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Q: The mean of 200 items is 48 and their Standard Deviation is 3. Find (i) sum of all the items, (ii)…

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Q: Find the range and standard deviation of the set of data. 1365, 25, 155, 60, 310 The range is 1340.…

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Q: the mean of a problem of .85 and the standard deviation is 0.18 HOW would I calculate the range at…

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Q: Listed below are foot lengths in inches for 11 randomly selected people taken in 1988. Find the…

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Q: the mean only given the standard deviation? I know I can get the variance from standard deviation.…

A: The formula for calculating the  variance and standard deviation is,

Q: What would happen to the margin of error if the standard deviation were to decrease? it would…

A: We know that ,Margin of error=critical value ×standard deviation sample sizeMargin of error =Zα2 ×σn…

Q: A professor gives a test and the scores are normally distributed with a mean of 60 and a standard…

A: Given Information: A professor gives a test and the scores are normally distributed with a mean of…

Q: The 18 red room subjects had an average solve time of 10.13 seconds with a standard deviation of…

A: Formula :

Q: The test scores for a very large statistics class have a bell-shaped distribution with a mean of 72…

A: We have given that  X~N(mu, sigma^2) mu = 72  Z-score =(x-mu )/sigma

Q: suppose a average score on national test is 500 and standard deviation is 100.if each score is…

A: Mean is a measure of central tendency and standard deviation is a measure of dispersion.

Q: What do you mean by AIC Lag Length Estimator?

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Q: A sample of 18 observations taken from a normally distributed population produced the following…

A: Given data…

Q: The mean and standard deviation of 20 items was found to be 10 and 2 respectively. Later it was…

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Q: Can the deviations tend to cancel one another out if they are added directly?

A: The term deviation could be defined as the difference that lies between the variable’s observed…

Q: In the same class, Idris scored 82% on a test with a z-score of 1.5 while Malik got 54% with a…

A: From the provided information, Idris scored 82% on a test with z score of 1.5 and Malik got 54% with…

Q: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 4. Mathematics tests produce scores that are approximately…

A: It is given that  Mean, μ = 480 Standard deviation, σ = 100

Q: In a study of speed dating, female subjects were asked to rate the attractiveness of their male…

A: Range of a data set is the difference between the minimum and maximum observations.

Q: Suppose the scores of students on an exam are normally distributed with a mean of 376 and a standard…

A: From the provided information, Mean (µ) = 376 Standard deviation (σ) = 30 X~N (376, 30)

Q: 5. 1. 2. 4. Data Sheet Capacitance -- Procedure III Capacitors in Series Capacitors in Parallel…

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Q: I have worked out part A but need help to work out part B.  The notes say it can be done using…

A: It is given that:

Q: If the population average height is 67" and you take a random sample of 25 people resulting in a…

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Q: Q 4-6 refer to the following situation:The 1999 Consumer Reports new Car Buying Guide reporte the…

A: Given boxplot:

Q: Question 2 ▼ > Let the universal set be U = {-10, -9,-4, -2,0, 1, 2, 3, 5, 10} and sets A = {1, 2,…

A: U=(-10,-9,-4,-2,0,1,2,3,5,10) A=(1,2,5,10) B=(-9,-2,0,1,2,10)

Q: iation after we have found the range?

A: Range: The range of a set of data is the difference between the largest and smallest values.…

Q: The actual value of the standard deviation can be zero or a positive number, why value can never be…

A: Measures of Dispersion: The word dispersion is used to denote the degree of heterogeneity in the…

Q: The following data were used to construct the histograms of the number of days required to fill…

A: The standard deviation of a set of observations is given by :    SD = 1(total number of…

Q: Suppose you want to know what height represents the cutoff for heights less than 99.5% of all…

A: The normal distribution is the most useful theoretical distribution for continuous variable.  For…