For any true/false if the statement is true or false explain why. It is impossible to get a z-score of 155. TRUE FALSE A new line of cars has gas mileage represented by a distribution that is approximately normal with a mean of 32 mpg and a standard deviation of 4 mpg. Use the empirical rule to answer the following: a)Approximately what percent of cars get between 24 and 32 mpg? b) Approximately what proportion of cars get between 28 and 40 mpg?
For any true/false if the statement is true or false explain why. It is impossible to get a z-score of 155. TRUE FALSE A new line of cars has gas mileage represented by a distribution that is approximately normal with a mean of 32 mpg and a standard deviation of 4 mpg. Use the empirical rule to answer the following: a)Approximately what percent of cars get between 24 and 32 mpg? b) Approximately what proportion of cars get between 28 and 40 mpg?
For any true/false if the statement is true or false explain why. It is impossible to get a z-score of 155. TRUE FALSE A new line of cars has gas mileage represented by a distribution that is approximately normal with a mean of 32 mpg and a standard deviation of 4 mpg. Use the empirical rule to answer the following: a)Approximately what percent of cars get between 24 and 32 mpg? b) Approximately what proportion of cars get between 28 and 40 mpg?
For any true/false if the statement is true or false explain why.
It is impossible to get a z-score of 155. TRUE FALSE
A new line of cars has gas mileage represented by a distribution that is approximately normal with a mean of 32 mpg and a standard deviation of 4 mpg. Use the empirical rule to answer the following:
a)Approximately what percent of cars get between 24 and 32 mpg? b) Approximately what proportion of cars get between 28 and 40 mpg?
Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...
Expert Solution
Step 1
1. FALSE
It is possible to get a value of 155. This would mean that the value would be present 155 times standard deviation from the mean. Since it is a high value, there is every chance that the value in question is an outlier.
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