A college wants to determine if the grade in a Physics 1 course will be higher if they make Calculus 1 a perquisite instead of a corequisite. The college randomly samples 100 students that completed a Physics 1 course that took Calculus 1 as a prerequisite. The average grade of these students was a 76% in their Physics 1 course, with a standard deviation of 20%. The school randomly sampled 140 students that completed a Physics 1 course that took Calculus 1 as a corequisite. The average grade of these students was a 74% with a standard deviation of 21%. Defining population 1 as the students who took Calculus 1 before Physics 1, and population 2 as students who took Calculus 1 with physics, use a 5% significaice level to determine if the average grade of all students who take Calculus 1 before Physics 1 is higher. Give the hypotheses.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Question 4: give the conclusion.
A college wants to determine if the grade in a Physics 1 course will be
higher if they make Calculus 1 a perquisite instead of a corequisite.
The college randomly samples 100 students that completed a Physics
1 course that took Calculus 1 as a prerequisite. The average grade of
these students was a 76% in their Physics 1 course, with a standard
deviation of 20%. The school randomly sampled 140 students that
completed a Physics 1 course that took Calculus 1 as a corequisite.
The average grade of these students was a 74% with a standard
deviation of 21%. Defining population 1 as the students who took
Calculus 1 before Physics 1, and population 2 as students who took
Calculus 1 with physics, use a 5% significaice level to determine if the
average grade of all students who take Calculus 1 before Physics 1 is
higher.
Give the hypotheses.
Transcribed Image Text:A college wants to determine if the grade in a Physics 1 course will be higher if they make Calculus 1 a perquisite instead of a corequisite. The college randomly samples 100 students that completed a Physics 1 course that took Calculus 1 as a prerequisite. The average grade of these students was a 76% in their Physics 1 course, with a standard deviation of 20%. The school randomly sampled 140 students that completed a Physics 1 course that took Calculus 1 as a corequisite. The average grade of these students was a 74% with a standard deviation of 21%. Defining population 1 as the students who took Calculus 1 before Physics 1, and population 2 as students who took Calculus 1 with physics, use a 5% significaice level to determine if the average grade of all students who take Calculus 1 before Physics 1 is higher. Give the hypotheses.
Give the conclusion.
Reject the null since the test statistic falls in the rejection region.
Fail to reject the null since the test statistic does not fall in the rejection
region.
Transcribed Image Text:Give the conclusion. Reject the null since the test statistic falls in the rejection region. Fail to reject the null since the test statistic does not fall in the rejection region.
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