A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a0.10significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 698338674523596563486171949068 A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.10 significance level to test the claim that these times arefrom a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute?698338674523 59 6563486171949068Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?O B. Ho: u# 60 secondsO A. Ho: µ= 60 secondsH:µ< 60 secondsH: u = 60 secondsOC. Ho: u = 60 secondsO D. Ho: u = 60 secondsH: µ#60 secondsH: u> 60 secondsDetermine 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.Fail to reject Ho. There issufficientevidence to conclude that the original claim that the mean of the population of estimates is 60 seconds is not correct. It does not appear that, as a group,the students are reasonably good at estimating one minute.

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

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Chapter10: Statistics

Section10.5: Comparing Sets Of Data

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A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a

0.10

significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute?

A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.10 significance level to test the claim that these times are
from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute?
69
83
38
67
45
23 59 65
63
48
61
71
94
90
68
Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses?
O B. Ho: u# 60 seconds
O A. Ho: µ= 60 seconds
H:µ< 60 seconds
H: u = 60 seconds
OC. Ho: u = 60 seconds
O D. Ho: u = 60 seconds
H: µ#60 seconds
H: u> 60 seconds
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.
Fail to reject Ho. There is
sufficient
evidence to conclude that the original claim that the mean of the population of estimates is 60 seconds is not correct. It does not appear that, as a group,
the students are reasonably good at estimating one minute.

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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