MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Bartleby Related Questions Icon

Related questions

Question

The data table is in the pic

Options for the last part are: 

A = (in pic)

B = the sample means suggest that the difference does have practical significance. the generator could not be used as a substitute when needed.

C = The sample means suggest that the difference does not have practical significance. the generator could be used as a substitute when needed. 

D= the difference is not statistically significant 

Please help. 

Thanks so much. :) 

fi
- X
Data for Home Voltages and Generator Voltages
Complete data set
Day Home (volts) Generator (volts) Day Home (volts) Generator (volts)
1
123.2
124.4
21
123.5
124.0
2
123.7
124.3
22
123.4
124.5
3
123.8
125.2
23
123.4
124.4
4
123.2
124.0
24
123.7
124.8
5
123.1
124.9
25
123.4
124.3
6
123.2
124.3
26
123.3
124.7
7
123.0
125.4
27
123.4
124.6
8
123.1
124.5
28
123.6
124.3
9
123.5
125.0
29
123.5
124.0
10
123.7
124.7
30
123.6
124.6
11
123.2
124.8
31
123.9
124.3
12
123.4
124.8
32
123.2
124.9
13
123.3
124.1
33
123.8
124.6
14
123.2
124.7
34
123.9
124.2
15
123.3
124.8
35
123.4
124.0
16
124.0
124.9
36
123.0
125.0
17
124.4
124.4
37
123.3
124.7
18
123.5
124.6
38
123.3
124.6
19
123.3
124.9
39
123.2
124.1
20
123.5
124.7
40
123.3
124.3
expand button
Transcribed Image Text:fi - X Data for Home Voltages and Generator Voltages Complete data set Day Home (volts) Generator (volts) Day Home (volts) Generator (volts) 1 123.2 124.4 21 123.5 124.0 2 123.7 124.3 22 123.4 124.5 3 123.8 125.2 23 123.4 124.4 4 123.2 124.0 24 123.7 124.8 5 123.1 124.9 25 123.4 124.3 6 123.2 124.3 26 123.3 124.7 7 123.0 125.4 27 123.4 124.6 8 123.1 124.5 28 123.6 124.3 9 123.5 125.0 29 123.5 124.0 10 123.7 124.7 30 123.6 124.6 11 123.2 124.8 31 123.9 124.3 12 123.4 124.8 32 123.2 124.9 13 123.3 124.1 33 123.8 124.6 14 123.2 124.7 34 123.9 124.2 15 123.3 124.8 35 123.4 124.0 16 124.0 124.9 36 123.0 125.0 17 124.4 124.4 37 123.3 124.7 18 123.5 124.6 38 123.3 124.6 19 123.3 124.9 39 123.2 124.1 20 123.5 124.7 40 123.3 124.3
Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal.
Refer to the accompanying data set. Use a 0.05 significance level to test the claim that the sample of home voltages and the sample of generator voltages are from populations with the same mean. If there is a statistically significant difference, does that
difference have practical significance?
Click the icon to view the data for home voltages and generator voltages.
Let µ, be the population mean home voltage and let μ₂ be the population mean generator voltage. What are the null and alternative hypotheses?
OA. Ho H1 <H₂
B. Ho H₁ H₂
H₁: M₁ = H₂
H₁ H₁ = H₂
OC. Ho H1 H2
D. Ho: M1 = 2
H₁: Hy > H₂
H₁ H1 H₂
Calculate the test statistic.
t= (Round to three decimal places as needed.)
Find the P-value.
P-value = (Round to four decimal places as needed.)
Make a conclusion about the null hypothesis and a final conclusion that addresses the original claim.
statistically significant
Ho. There
sufficient evidence to warrant rejection of the claim that the sample of home voltages and the sample of generator voltages are from populations with the same mean. The difference
If there is a statistically significant difference, does that difference have practical significance?
OA. The sample means suggest that the difference does not have practical significance. The generator could not be used as a substitute when needed.
Next
expand button
Transcribed Image Text:Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Refer to the accompanying data set. Use a 0.05 significance level to test the claim that the sample of home voltages and the sample of generator voltages are from populations with the same mean. If there is a statistically significant difference, does that difference have practical significance? Click the icon to view the data for home voltages and generator voltages. Let µ, be the population mean home voltage and let μ₂ be the population mean generator voltage. What are the null and alternative hypotheses? OA. Ho H1 <H₂ B. Ho H₁ H₂ H₁: M₁ = H₂ H₁ H₁ = H₂ OC. Ho H1 H2 D. Ho: M1 = 2 H₁: Hy > H₂ H₁ H1 H₂ Calculate the test statistic. t= (Round to three decimal places as needed.) Find the P-value. P-value = (Round to four decimal places as needed.) Make a conclusion about the null hypothesis and a final conclusion that addresses the original claim. statistically significant Ho. There sufficient evidence to warrant rejection of the claim that the sample of home voltages and the sample of generator voltages are from populations with the same mean. The difference If there is a statistically significant difference, does that difference have practical significance? OA. The sample means suggest that the difference does not have practical significance. The generator could not be used as a substitute when needed. Next
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Similar questions
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman