Question
In: Statistics and Probability
Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine...
- Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine if there is a difference in treatments? Use the six steps of hypothesis testing at a 0.05 level of significance. Put the below data into Excel to perform the analysis.
|
Braking Distance |
|||
|
Disk |
Disk |
Disk |
Disk |
|
69.8 |
78.1 |
77.7 |
90.6 |
|
65.6 |
81.0 |
80.9 |
91.0 |
|
71.7 |
81.9 |
80.8 |
89.4 |
|
70.5 |
81.8 |
79.8 |
88.1 |
|
68.0 |
78.8 |
81.1 |
87.5 |
|
69.3 |
78.9 |
82.0 |
92.0 |
|
71.0 |
81.4 |
80.0 |
90.7 |
|
68.8 |
82.2 |
80.8 |
88.4 |
|
66.7 |
79.8 |
80.9 |
89.7 |
|
72.0 |
76.7 |
79.8 |
88.1 |
|
72.8 |
80.1 |
80.1 |
89.4 |
|
67.2 |
78.7 |
80.4 |
89.2 |
- Is the average braking distance for material 2 different than the average braking distance for material 3? Prove your conclusion by using the confidence interval formula in chapter 1
Solutions
orchestra answered 1 year agoRelated Solutions
Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine...
Braking distance was evaluated for 4 different brake materials.
Run an analysis of variance to determine if there is a difference
in treatments? Use the six steps of hypothesis testing at a 0.05
level of significance. Put the below data into Excel to perform the
analysis.
Is the average braking distance for material 2 different than
the average braking distance for material 3? Prove your conclusion
by using the confidence interval formula: (x1-x2) +/- t √MSE (1/n1
+ 1/n2)
please...
Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine...
Braking distance was evaluated for 4 different brake materials.
Run an analysis of variance to determine if there is a difference
in treatments? Use the six steps of hypothesis testing
at a 0.05 level of significance. Put the below data into Excel to
perform the analysis.
Braking Distance
Disk
Material 1
Disk
Material 2
Disk
Material 3
Disk
Material 4
69.8
78.1
77.7
90.6
65.6
81.0
80.9
91.0
71.7
81.9
80.8
89.4
70.5
81.8
79.8
88.1
68.0
78.8
81.1
87.5...
Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine...
Braking distance was evaluated for 4 different brake materials.
Run an analysis of variance to determine if there is a difference
in treatments? Use the six steps of hypothesis testing
at a 0.05 level of significance. Put the below data into Excel to
perform the analysis.
Braking Distance
Disk
Material 1
Disk
Material 2
Disk
Material 3
Disk
Material 4
69.8
78.1
77.7
90.6
65.6
81.0
80.9
91.0
71.7
81.9
80.8
89.4
70.5
81.8
79.8
88.1
68.0
78.8
81.1
87.5...
Braking distance was evaluated for 4 different brake materials. Run an analysis of variance to determine...
Braking distance was evaluated for 4 different brake materials.
Run an analysis of variance to determine if there is a difference
in treatments? Use the six steps of hypothesis testing
at a 0.05 level of significance. Put the below data into Excel to
perform the analysis.
Braking Distance
Disk
Material 1
Disk
Material 2
Disk
Material 3
Disk
Material 4
69.8
78.1
77.7
90.6
65.6
81.0
80.9
91.0
71.7
81.9
80.8
89.4
70.5
81.8
79.8
88.1
68.0
78.8
81.1
87.5...
A study was conducted to determine whether the mean braking distance of four-cylinder cars is greater...
A study was conducted to determine whether the mean braking
distance of four-cylinder cars is greater than the mean braking
distance of six-cylinder cars. A random sample of 20 four-cylinder
cars and a random sample of 20 six-cylinder cars were obtained, and
the braking distances were measured.
(a) What would be the appropriate hypothesis test for this
analysis? - t-test for two independent samples - t-test for
dependent samples - z-test for population mean -correlation
(b) Explain the rationale for...
Two different polishing materials are being evaluated for use in machining operations in a manufacturing company....
Two different polishing materials are being evaluated for use in
machining operations in a manufacturing company. One hundred
machine parts were polished using polishing material A and of this
number 87 had no polishing-included defects. Another 100 machine
parts were polished using polishing material B and 75 parts were
satisfactory upon completion. Is there any reason to believe that
the two polishing materials differ? Use α = 0.02.
Direct Materials, Direct Labor, and Factory Overhead Cost Variance Analysis
Direct Materials, Direct Labor, and Factory Overhead Cost Variance Analysis Mackinaw Inc. processes a base chemical into plastic. Standard costs and actual costs for direct materials, direct labor, and factory overhead incurred for the manufacture of 74,000 units of product were as follows: Standard CostsActual CostsDirect materials251,600 lbs. at $5.40249,100 lbs. at $5.20Direct labor18,500 hrs. at $17.3018,930 hrs. at $17.70Factory overheadRates per direct labor hr.,based on 100% of normalcapacity of 19,310 directlabor hrs.:Variable cost, $4.80$87,910 variable costFixed cost, $7.60$146,756 fixed costEach unit...
An engineer wishes to determine if the stopping distance for midsize automobiles is different from that...
An engineer wishes to determine if the stopping distance for
midsize automobiles is different from that of compact automobiles
at 75 mph. The data is shown below.
Automobile 1 2 3 4 5 6 7 8 9 10
Midsize 188 190 195 192 186 194 188 187 214 203
Compact 200 211 206 297 198 204 218 212 196 193
a) State the null and alternate hypotheses.
b) Use a Wilcoxon rank sum test to determine if
there is a...
A golf instructor wants to determine if the drive distance is different for three golf ball...
A golf instructor wants to determine if the drive distance is
different for three golf ball brands. The instructor has several of
his students drive the different brands and collects the following
data.
Golf Ball Brands
Golfer A B C
Brad 275 350 295
Will 300 525 380
Huang 245 286 300
Singh 220 256 286
Woods 400 415 475
Fisher 356 385 396
The following information is provided: SSTR = 16520; SSE =
20335; SSTotal = 114520. Please construct...
1. How is an Analysis of Variance (ANOVA) similar to and different from a t-test for...
1. How is an Analysis of Variance (ANOVA) similar to and
different from a t-test for two samples?
2. Why is it impossible to calculate a negative F value when
using an Analysis of Variance to test a hypothesis?
Please answer both questions
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