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1. The average length of night (sunset to sunrise) in Manila is said to be 12.2 hours. A group of students said that in February, it will be shorter. They do a study about this and choose 14 randomly selected days in February. The computed sample average is 11.19 hours with a standard deviation of 0.25 hours. Is there enough evidence for the students' claim? Use a=0.05.

1. The average length of night (sunset to sunrise) in Manila is said to be 12.2 hours. A group of students said that in February, it will be shorter. They do a study about this and choose 14 randomly selected days in February. The computed sample average is 11.19 hours with a standard deviation of 0.25 hours. Is there enough evidence for the students' claim? Use a=0.05.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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11. what is the conclusion

Since we reject the null hypothesis and accept the alternative hypothesis there is no sufficient evidence to support the students' claim. Since we reject the null hypothesis and accept the alternative hypothesis there is sufficient evidence to suppor the students' claim. Since we do not reject the null hypothesis and reject the alternative hypothesis, there is no sufficient evidence to support the students' claim. Since we do not reject the null hypothesis and reject the alternative hypothesis, there is sufficient evidence to support the students' claim.
Transcribed Image Text:Since we reject the null hypothesis and accept the alternative hypothesis there is no sufficient evidence to support the students' claim. Since we reject the null hypothesis and accept the alternative hypothesis there is sufficient evidence to suppor the students' claim. Since we do not reject the null hypothesis and reject the alternative hypothesis, there is no sufficient evidence to support the students' claim. Since we do not reject the null hypothesis and reject the alternative hypothesis, there is sufficient evidence to support the students' claim.
1. The average length of night (sunset to sunrise) in Manila is said to be 12.2 hours. A group of students said that in February, it will be shorter. They do a study about this and choose 14 randomly selected days in February. The computed sample average is 11.19 hours with a standard deviation of 0.25 hours. Is there enough evidence for the students' claim? Use a=0.05.
Transcribed Image Text:1. The average length of night (sunset to sunrise) in Manila is said to be 12.2 hours. A group of students said that in February, it will be shorter. They do a study about this and choose 14 randomly selected days in February. The computed sample average is 11.19 hours with a standard deviation of 0.25 hours. Is there enough evidence for the students' claim? Use a=0.05.
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