A population of values has a normal distribution with μ=69.3μ=69.3 and σ=84.3σ=84.3. You intend to draw a random sample of size n=128n=128. Find the probability that a single randomly selected value is between 64.8 and 91.7. P(64.8 < X < 91.7) = Find the probability that a sample of size n=128n=128 is randomly selected with a mean between 64.8 and 91.7. P(64.8 < M < 91.7) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted
A population of values has a normal distribution with μ=69.3μ=69.3 and σ=84.3σ=84.3. You intend to draw a random sample of size n=128n=128. Find the probability that a single randomly selected value is between 64.8 and 91.7. P(64.8 < X < 91.7) = Find the probability that a sample of size n=128n=128 is randomly selected with a mean between 64.8 and 91.7. P(64.8 < M < 91.7) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted
A population of values has a normal distribution with μ=69.3μ=69.3 and σ=84.3σ=84.3. You intend to draw a random sample of size n=128n=128. Find the probability that a single randomly selected value is between 64.8 and 91.7. P(64.8 < X < 91.7) = Find the probability that a sample of size n=128n=128 is randomly selected with a mean between 64.8 and 91.7. P(64.8 < M < 91.7) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted
A population of values has a normal distribution with μ=69.3μ=69.3 and σ=84.3σ=84.3. You intend to draw a random sample of size n=128n=128.
Find the probability that a single randomly selected value is between 64.8 and 91.7. P(64.8 < X < 91.7) =
Find the probability that a sample of size n=128n=128 is randomly selected with a mean between 64.8 and 91.7. P(64.8 < M < 91.7) =
Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
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 + ...
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