Question
In: Statistics and Probability
Students in a business statistics course performed a single factor analysis to test the strength of...
Students in a business statistics course performed a single factor analysis to test the strength of three brands of trash bags. One-pound weights were placed into a bag one at a time until the bag broke. A total of 30 bags, 10 for each brand, were used. An Analysis of Variance was performed on the data to determine if the average breaking strengths were the same for the three brands. The value of MSW in the resulting ANOVA table was 12.11.
Brand Sample Size Average
GLAD 10 36.30
HEFTY 10 34.90
TUFFSTUFF 10 19.30
Given that the null hypothesis of equal breaking strengths was rejected, determine where the differences are.
Solutions
orchestra answered 1 year agoRelated Solutions
Students in a business statistics course performed a single factor analysis to test the strength of...
Students in a business statistics course performed a single
factor analysis to test the strength of three brands of trash bags.
One-pound weights were placed into a bag one at a time until the
bag broke. A total of 30 bags, 10 for each brand, were used. An
Analysis of Variance was performed on the data to determine if the
average breaking strengths were the same for the three brands. The
value of MSW in the resulting ANOVA table was...
Students in a business statistics course performed a completely randomized design to test the strength of...
Students in a business statistics course performed a completely
randomized design to test the strength of four brands of trash
bags. One-pound weights were placed into a bag, one at a time,
until the bag broke. A total of 24 bags, 6 for each brand, were
used. The data in the accompanying table give the weight (in
pounds) required to break the trash bags. Brand 1 Brand 2 Brand 3
Brand 4 31 42 34 22 40 36 38 16...
Students in a business statistics course performed a completely randomized design to test the strength of...
Students in a business statistics course performed a completely
randomized design to test the strength of four brands of trash
bags. One-pound weights were placed into a bag, one at a time,
until the bag broke. A total of 40 bags, 10 for each brand, were
used. The data in give the weight (in pounds) required to break the
trash bags. Dataset: Trashbags
At the 0.05 level of significance, is there evidence of a
difference in the mean strength of...
23.(8 pts) An algebra test is given to students at the beginning of a statistics course....
23.(8 pts) An algebra test is given to students at the beginning
of a statistics course. The algebra test scores and the final
statistics grades are collected for several randomly selected
students and the results are given below. x = Algebra 80 78 75 63
84 y = Statistics 77 92 87 81 68 a. n = _____ r = ___________b0
=________ b1 = _____________ ?bar = __________
b. Test the claim that there is a linear correlation using the...
To test the effectiveness of a business school preparation course, 8 students took a general business...
To test the effectiveness of a business school preparation
course, 8 students took a general business test before and after
the course. The results are given below.
Student Last Name
Score Before Course
Score After Course
Garcia
670
730
Lam
710
720
Rodriguez
870
860
Torriero
770
800
At the 0.05 level of significance, the conclusion for this
hypothesis test is:
a
Do not reject H0: there is sufficient evidence that
the business school preparation course has an impact on...
The Test results of the Business Statistics were published and the scores were as followed Students...
The Test results of the Business Statistics were published and
the scores were as followed
Students 12 14 10 13 17 12 11 15
Results 5 11 7 8 11 7 6 9
Only 2 decimal places
Determine the α (alpha) Coefficient in the regression equation
*
4 points
Your answer
Advise if increasing the number of students to 50 will improve
the students’ test scores *
2 points
Remain the same
Increase
Decrease
Determine the β Coefficient in the...
A random sample of 12 second-year university students enrolled in a business statistics course was drawn....
A random sample of 12 second-year university students enrolled
in a business statistics course was drawn. At the course's
completion, each student was asked how many hours he or she spent
doing homework in statistics. The data are listed below.
40, 41, 29, 30, 31, 31, 34, 29, 37, 41, 37, 40
It is known that the population standard deviation is 8. The
instructor has recommended that students devote 3 hours per week
for the duration of the 12-week semester,...
A random sample of 12 second-year university students enrolled in a business statistics course was drawn....
A random sample of 12 second-year university students enrolled
in a business statistics course was drawn. At the course's
completion, each student was asked how many hours he or she spent
doing homework in statistics. The data are listed below.
281726262620292823271820282626292318172620282720
It is known that the population standard deviation is 9. The
instructor has recommended that students devote 2 hours per week
for the duration of the 12-week semester, for a total of 24 hours.
Test to determine whether there...
A random sample of 12 second-year university students enrolled in a business statistics course was drawn....
A random sample of 12 second-year university students enrolled
in a business statistics course was drawn. At the course’s
completion, each student was asked how many hours he or she spent
doing homework in statistics. The data are listed here. It is know
that the population standard deviation is 8. The instructor has
recommended that the students devote 36 hours to the course for the
semester. Test to determine at the 1% significance level whether
there is evidence that the...
A random sample of 12 second-year university students enrolled in a business statistics course was drawn....
A random sample of 12 second-year university students enrolled
in a business statistics course was drawn. At the course's
completion, each student was asked how many hours he or she spent
doing homework in statistics. The data are listed below. 28 18 15
20 14 25 21 29 20 23 24 26 It is known that the population standard
deviation is 6. The instructor has recommended that students devote
2 hours per week for the duration of the 12-week semester,...
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