Coffee: The National Coffee Association reported that 61% of U.S. adults drink coffee daily. A random sample of 275 U.S. adults is selected. Round your answers to at least four decimal places as needed. Part 1 of 6 (a) Find the mean μp . The mean μp is 0.61 . Part 2 of 6 (b) Find the standard deviation σp . The standard deviation σp is 0.0294 . Part: 2 / 6 2 of 6 Parts Complete Part 3 of 6 (c) Find the probability that more than 62% of the sampled adults drink coffee daily. The probability that more than 62% of the sampled adults drink coffee daily is
Coffee: The National Coffee Association reported that 61% of U.S. adults drink coffee daily. A random sample of 275 U.S. adults is selected. Round your answers to at least four decimal places as needed. Part 1 of 6 (a) Find the mean μp . The mean μp is 0.61 . Part 2 of 6 (b) Find the standard deviation σp . The standard deviation σp is 0.0294 . Part: 2 / 6 2 of 6 Parts Complete Part 3 of 6 (c) Find the probability that more than 62% of the sampled adults drink coffee daily. The probability that more than 62% of the sampled adults drink coffee daily is
Coffee: The National Coffee Association reported that 61% of U.S. adults drink coffee daily. A random sample of 275 U.S. adults is selected. Round your answers to at least four decimal places as needed. Part 1 of 6 (a) Find the mean μp . The mean μp is 0.61 . Part 2 of 6 (b) Find the standard deviation σp . The standard deviation σp is 0.0294 . Part: 2 / 6 2 of 6 Parts Complete Part 3 of 6 (c) Find the probability that more than 62% of the sampled adults drink coffee daily. The probability that more than 62% of the sampled adults drink coffee daily is
Coffee: The National Coffee Association reported that
61%
of U.S. adults drink coffee daily. A random sample of
275
U.S. adults is selected. Round your answers to at least four decimal places as needed.
Part 1 of 6
(a) Find the mean
μp
.
The mean
μp
is
0.61
.
Part 2 of 6
(b) Find the standard deviation
σp
.
The standard deviation
σp
is
0.0294
.
Part: 2 / 6
2 of 6 Parts Complete
Part 3 of 6
(c) Find the probability that more than
62%
of the sampled adults drink coffee daily.
The probability that more than
62%
of the sampled adults drink coffee daily is
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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