Question: how do you makeahypothesis testing to test a premise. Use .05 for your alpha and give the scenario. Set up the problem, solve it and
how do you makeahypothesis testing to test a premise. Use .05 for your alpha and give the scenario. Set up the problem, solve it and state your conclusions.
See the example below.
make a hypothesis test.For instance, XYZ car company boast that it's new car Eco Auto gets at least 59 miles to the gallon. Given a sample mean of 57 and a standard deviation of 3.5 where 35 people were tested, find the z value and p score. Hint: Use the P value calculator in the announcements to find the p score. Note: On this one you do not need to attach an excel spreadsheet.
Student Response:
Ho: >=59
Ha: <59
You can put this in excel or your calculator
= (57-59)/(3.5/35^.5)
=-3.38
Using the z to p value calculator
https://www.socscistatistics.com/pvalues/normaldistribution.aspx
with =.05, 1 tailed test and z=-3.38, you get
p=.000362
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or enter this in excel
=norm.dist(57,59,3.5/35^.5,true) and hit enter
.000362
This is the z value and in this case the p value
If you have a 2 tailed- test, then multiply the value you get by 2.
and hit enter
Since p < .05, you reject the null.
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