Consider the following hypothesis test: Ho: mu<=12 H1: mu>12 A sample of 20 provided a sample...
Consider the following hypothesis test:
Ho: mu<=12
H1: mu>12
A sample of 20 provided a sample mean of 14 and a sample standard deviation s = 4.52 . Use a = 0.05 .
Step 1: Calculate the test statistic for this problem . Round your answer to four decimal places.
Step 2: What is the p-value for your test?
Step 3: State the conclusion to this problem.
Homework Answers
Ans:
1)
Test statistic:
t=(14-12)/(4.52/sqrt(20))
t=1.9788
2)
df=20-1=19
p-value=tdist(1.9788,19,1)=0.0313
3)
As,p-value<0.05,we reject the null hypothesis.
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