4. The proportion of senior male students’ height is significantly higher than that of senior female students. 5. The average grade of Grade 11 students in Statistics is lower than their average grade in Calculus.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.3: Shapes Of Distributions
Problem 14E
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answer #4 and 5 only. thanksss
Directions: Determine if one-tailed test or two-tailed test fits
the given alternative hypothesis.
1. The mean height of Grade 12 students is less than 66
inches.
2. The standard deviation of their height is not equal to 5
inches.
3. Male Grade 7 and Grade 12 students differ in height on
average.
4. The proportion of senior male students' height is
significantly higher than that of senior female students.
5. The average grade of Grade 11 students in Statistics is
lower than their average grade in Calculus.
Transcribed Image Text:Directions: Determine if one-tailed test or two-tailed test fits the given alternative hypothesis. 1. The mean height of Grade 12 students is less than 66 inches. 2. The standard deviation of their height is not equal to 5 inches. 3. Male Grade 7 and Grade 12 students differ in height on average. 4. The proportion of senior male students' height is significantly higher than that of senior female students. 5. The average grade of Grade 11 students in Statistics is lower than their average grade in Calculus.
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