Some people believe that different octane gasoline result in different miles per gallon in a vehicle. The following data is a sample of 11 people which were asked to drive their car only using 10 gallons of gas and record their mileage for each 87 Octane and 92 Octane. Miles with Miles with Person 87 92 Octane Octane 1 234 237 2 257 238 3 243 229 4 215 224 114 119 287 297 7 315 351 8 229 241 192 186 10 204 209 11 547 562 Do the data support that different octanes produce different miles per gallon at the a 0.02 level of significance? Note: A normal probability plot of difference in car mileage between Octane 87 and Octane 92 indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume Hã = 41 - H2, where ui is the population mean mileage for Octane 87 and uz is the mean mileage for Octane 92. Ho: Hã Select an answer H1: uj Select an answer b. What is the significance level? a = c. What is the test statistic? Round to 3 decimal places. d. What is thep-value? Round to 5 decimal places. p = e. Make a decision. Do not reject the null Reject the null
Some people believe that different octane gasoline result in different miles per gallon in a vehicle. The following data is a sample of 11 people which were asked to drive their car only using 10 gallons of gas and record their mileage for each 87 Octane and 92 Octane. Miles with Miles with Person 87 92 Octane Octane 1 234 237 2 257 238 3 243 229 4 215 224 114 119 287 297 7 315 351 8 229 241 192 186 10 204 209 11 547 562 Do the data support that different octanes produce different miles per gallon at the a 0.02 level of significance? Note: A normal probability plot of difference in car mileage between Octane 87 and Octane 92 indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume Hã = 41 - H2, where ui is the population mean mileage for Octane 87 and uz is the mean mileage for Octane 92. Ho: Hã Select an answer H1: uj Select an answer b. What is the significance level? a = c. What is the test statistic? Round to 3 decimal places. d. What is thep-value? Round to 5 decimal places. p = e. Make a decision. Do not reject the null Reject the null
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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
Transcribed Image Text:11/15/2020
MyOpenMath
Some people believe that different octane gasoline result in different miles per gallon in a vehicle. The
following data is a sample of 11 people which were asked to drive their car only using 10 gallons of gas
and record their mileage for each 87 Octane and 92 Octane.
Miles
with
Miles with
Person
87
92 Octane
Octane
1
234
237
2
257
238
3
243
229
4
215
224
114
119
287
297
7
315
351
8
229
241
9.
192
186
10
204
209
11
547
562
Do the data support that different octanes produce different miles per gallon at the a = 0.02 level of
significance? Note: A normal probability plot of difference in car mileage between Octane 87 and
Octane 92 indicates the population could be normal and a boxplot indicated no outliers.
a. Express the null and alternative hypotheses in symbolic form for this claim. Assume
Ha = µ1 - H2, where µi is the population mean mileage for Octane 87 and uz is the mean
mileage for Octane 92.
Ho: Hj Select an answer
H1: Hi Select an answer
b. What is the significance level?
c. What is the test statistic? Round to 3 decimal places.
kestate
d. What is thep-value? Round to 5 decimal places.
e. Make a decision.
Do not reject the null
Reject the null
https://www.myopenmath.com/assess2/?cid=80488&aid3D5754732#/print
4/7

Transcribed Image Text:11/15/2020
MyOpenMath
f. What is the conclusion?
There is sufficient evidence to support the claim that different octanes produce different
miles per gallon.
There is not sufficient evidence to support the claim that different octanes produce
different miles per gallon.
.... --
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