a. Is a one-sided or two sided test needed here? b. What is the mean weight for each time period? C. c. What is the standard deviation for each time period? d. Which statistical test is appropriate to use on these data? Carry out the hypothesis test(s) in question in above d. Use α=0.01 e. f. Are the means statistically different? g. Find the 99% confidence interval for the difference of the two means on weight. Interpret your finding
a. Is a one-sided or two sided test needed here? b. What is the mean weight for each time period? C. c. What is the standard deviation for each time period? d. Which statistical test is appropriate to use on these data? Carry out the hypothesis test(s) in question in above d. Use α=0.01 e. f. Are the means statistically different? g. Find the 99% confidence interval for the difference of the two means on weight. Interpret your finding
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
Related questions
Question
A study was undertaken to determine whether there was a significant weight (in lb) loss after one year course of therapy for diabetes, and whether the amount of weight (in lb) loss was related to initial weight. The following table gives the initial weight (x) and weight after one year of therapy (y) for 16 newly diagnosed adult diabetic patients. a. Is a one-sided or two sided test needed here?
b. What is the mean weight for each time period?
c. What is the standard deviation for each time period?
d. Which statistical test is appropriate to use on these data?
e. Carry out the hypothesis test(s) in question in above d. Use α=0.01
f. Are the means statistically different?
g. Find the 99% confidence interval for the difference of the two means on weight. Interpret your finding.
Transcribed Image Text:A study was undertaken to determine whether there was a
significant weight (in lb) loss after one year course of therapy
for diabetes, and whether the amount of weight (in lb) loss was
related to initial weight. The following table gives the initial
weight (x) and weight after one year of therapy (y) for 16 newly
diagnosed adult diabetic patients.
Subject x y
140 115
160 130
180 135
120 125
132 112
146 130
190 160
200 160
120 123
145 143
150 125
160 140
160 135
149 120
129 119
150 130
1
2
3
4
15
6
7
8
19
10
11
12
13
14
15
16
a. Is a one-sided or two sided test needed here?
b. What is the mean weight for each time period?
c. What is the standard deviation for each time period?
d. Which statistical test is appropriate to use on these data?
e.
Carry out the hypothesis test(s) in question in above d. Use
a=0.01
f. Are the means statistically different?
g.
Find the 99% confidence interval for the difference of the
two means on weight. Interpret your finding
Transcribed Image Text:Subject x y
140 115
160 130
180 135
120 125
132 112
146 130
190 160
200 160
120 123
145 143
150 125
160 140
160 135
149 120
129 119
150 130
1
12
3
14
5
6
7
8
9
10
11
12
13
14
15
16
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