Homework Help is Here – Start Your Trial Now!
Math
Statistics
18. On the other hand, the researcher claims that the average length (i days) of a human pregnancy is less than 266. To test his claim, which o the following sets of hypotheses should be used? A. Ho: p= 252 vs. Ha: μ> 252 B. Ho: u = 252 vs. Ha: μ< 252

18. On the other hand, the researcher claims that the average length (i days) of a human pregnancy is less than 266. To test his claim, which o the following sets of hypotheses should be used? A. Ho: p= 252 vs. Ha: μ> 252 B. Ho: u = 252 vs. Ha: μ< 252

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 7PPS
See similar textbooks
icon
Related questions
Question
#18
For numbers 16-19: Studies show that length (in days) of a human pregnancy, X is normally distributed with mean 266 and a standard deviation of 16. To verify if X indeed follows a normal distribution, a researcher randomly selected 10 females who just gave birth and recorded the length (in days) of their pregnancy. Based on the samples, the average length (in days) of their pregnancy is 252 with a standard deviation of 20.
Transcribed Image Text:For numbers 16-19: Studies show that length (in days) of a human pregnancy, X is normally distributed with mean 266 and a standard deviation of 16. To verify if X indeed follows a normal distribution, a researcher randomly selected 10 females who just gave birth and recorded the length (in days) of their pregnancy. Based on the samples, the average length (in days) of their pregnancy is 252 with a standard deviation of 20.
18. On the other hand, the researcher claims that the average length (in days) of a human pregnancy is less than 266. To test his claim, which of the following sets of hypotheses should be used? A. Ho: p= 252 vs. Ha: µ > 252 B. Ho: u = 252 vs. Ha: μ< 252 OC. Ho: μ = 266 vs. Ha: µ > 266 D. Ho: µ = 266 vs. Ha: p < 266
Transcribed Image Text:18. On the other hand, the researcher claims that the average length (in days) of a human pregnancy is less than 266. To test his claim, which of the following sets of hypotheses should be used? A. Ho: p= 252 vs. Ha: µ > 252 B. Ho: u = 252 vs. Ha: μ< 252 OC. Ho: μ = 266 vs. Ha: µ > 266 D. Ho: µ = 266 vs. Ha: p < 266
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS