QUESTION DETAILS: Super Sneaker Company is evaluating two different materials, A and B, to be used to construct the soles of their new active shoe targeted to city high school students in Canada. While material B costs less than material A, the company suspects that mean wear for material B is greater than mean wear for material A. Two study designs were initially developed to test this suspicion. In both designs, Halifax was chosen as a representative city of the targeted market. In Study Design 1, 16 high school students were drawn at random from the Halifax School District database. After obtaining their shoe sizes, the company manufactured 16 pairs of shoes, each pair with one shoe having a sole constructed from material A and the other shoe, a sole constructed from material B A (16.41 13.32 11.86 14.76 12.52 12.27 13.71 13.59 15 = B = (14.76 15.09 14.02 13.54 15.35 14.29 13.26 14.65 14 QUESTION TO ANSWER* PLEASE USER SOFTWARE TO ANSWER AND SHOW CODE: What is the 95% confidence interval for the difference in wear between material B and material A (use B-A)? Use software to get a more precise critical value, but confirm it's roughtly the same value you get from the table. Use at least 5 digits to the right of the decimal. Lower bound: = ? Upper bound = ?
QUESTION DETAILS: Super Sneaker Company is evaluating two different materials, A and B, to be used to construct the soles of their new active shoe targeted to city high school students in Canada. While material B costs less than material A, the company suspects that mean wear for material B is greater than mean wear for material A. Two study designs were initially developed to test this suspicion. In both designs, Halifax was chosen as a representative city of the targeted market. In Study Design 1, 16 high school students were drawn at random from the Halifax School District database. After obtaining their shoe sizes, the company manufactured 16 pairs of shoes, each pair with one shoe having a sole constructed from material A and the other shoe, a sole constructed from material B A (16.41 13.32 11.86 14.76 12.52 12.27 13.71 13.59 15 = B = (14.76 15.09 14.02 13.54 15.35 14.29 13.26 14.65 14 QUESTION TO ANSWER* PLEASE USER SOFTWARE TO ANSWER AND SHOW CODE: What is the 95% confidence interval for the difference in wear between material B and material A (use B-A)? Use software to get a more precise critical value, but confirm it's roughtly the same value you get from the table. Use at least 5 digits to the right of the decimal. Lower bound: = ? Upper bound = ?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:QUESTION DETAILS: Super Sneaker Company is
evaluating two different materials, A and B, to be used
to construct the soles of their new active shoe targeted
to city high school students in Canada. While material B
costs less than material A, the company suspects that
mean wear for material B is greater than mean wear for
material A. Two study designs were initially developed
to test this suspicion. In both designs, Halifax was
chosen as a representative city of the targeted market.
In Study Design 1, 16 high school students were drawn
at random from the Halifax School District database.
After obtaining their shoe sizes, the company
manufactured 16 pairs of shoes, each pair with one
shoe having a sole constructed from material A and the
other shoe, a sole constructed from material B A
= (16.41 13.32 11.86 14.76 12.52 12.27 13.71 13.59 15.
B
(14.76 15.09 14.02 13.54 15.35 14.29 13.26 14.65 14.
QUESTION TO ANSWER* PLEASE USER SOFTWARE
TO ANSWER AND SHOW CODE: What is the 95%
confidence interval for the difference in wear between
material B and material A (use B-A)? Use software to
get a more precise critical value, but confirm it's
roughtly the same value you get from the table. Use at
least 5 digits to the right of the decimal. Lower bound:
? Upper bound = ?
=
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