A data set about speed dating includes "like" ratings of male dates made by the female dates. The summary statistics are n=188, x overbar=7.89, s=2.05. Use a 0.05 significance level to test the claim that the population mean of such ratings is less than 8.00. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.What are the null and alternative hypotheses?Determine the test statistic ___ (Round to two decimal places as needed.)Determine the P-value ___ (Round to three decimal places as needed.)State the final conclusion that addresses the original claim.▼ Reject, Fail to reject H0. There is▼ not sufficient, sufficient evidence to conclude that the mean of the population of ratings is ▼ equal to, notgreater than, less than, 8.00. A data set about speed dating includes "like" ratings of male dates made by the female dates. The summary statistics are n =188, x =7.89, s = 2.05. Use a 0.05 significance level to test the claim that the population mean of suchratings is less than 8.00. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.VVidi die ine nuii dinu daitemative nyponeses?O A. H,: µ= 8.00H,: µ#8.00O B. H,: µ= 8.00H,: µ<8.00OC. H,: µ=8.00Ο D. H μ< 8.00H,: µ> 8.00H,: p> 8.00Determine the test statistic.(Round to two decimal places as needed.)Determine the P-value.(Round to three decimal places as needed.)State the final conclusion that addresses the original claim.Hn. There isV evidence to conclude that the mean of the population of ratings is8.00.

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Chapter1: Combinatorial Analysis

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A data set about speed dating includes "like" ratings of male dates made by the female dates. The summary statistics are n=188, x overbar=7.89, s=2.05. Use a 0.05 significance level to test the claim that the population mean of such ratings is less than 8.00. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.

What are the null and alternative hypotheses?

Determine the test statistic ___ (Round to two decimal places as needed.)
Determine the P-value ___ (Round to three decimal places as needed.)
State the final conclusion that addresses the original claim.

▼ Reject, Fail to reject H0. There is▼ not sufficient, sufficient evidence to conclude that the mean of the population of ratings is ▼ equal to, not

greater than, less than, 8.00.

A data set about speed dating includes "like" ratings of male dates made by the female dates. The summary statistics are n =188, x =7.89, s = 2.05. Use a 0.05 significance level to test the claim that the population mean of such
ratings is less than 8.00. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.
VVidi die ine nuii dinu daitemative nyponeses?
O A. H,: µ= 8.00
H,: µ#8.00
O B. H,: µ= 8.00
H,: µ<8.00
OC. H,: µ=8.00
Ο D. H μ< 8.00
H,: µ> 8.00
H,: p> 8.00
Determine the test statistic.
(Round to two decimal places as needed.)
Determine the P-value.
(Round to three decimal places as needed.)
State the final conclusion that addresses the original claim.
Hn. There is
V evidence to conclude that the mean of the population of ratings is
8.00.

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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