You wish to test the following claim (HaHa) at a significancelevel of α=0.05α=0.05.
      Ho:μ=86.1Ho:μ=86.1
      Ha:μ≠86.1Ha:μ≠86.1
You believe the population is normally distributed and you know thestandard deviation is σ=14.2σ=14.2. You obtain a sample mean ofM=84.5M=84.5 for a sample of size n=63n=63.
What is the critical value for this test? (Report answer accurateto three decimal places.)
critical value = ±±
What is the test statistic for this sample? (Report answer accurateto three decimal places.)
test statistic =
The test statistic is...
- in the critical region
- not in the critical region
This test statistic leads to a decision to...
- reject the null
- accept the null
- fail to reject the null
As such, the final conclusion is that...
- There is sufficient evidence to warrant rejection of the claimthat the population mean is not equal to 86.1.
- There is not sufficient evidence to warrant rejection of theclaim that the population mean is not equal to 86.1.
- The sample data support the claim that the population mean isnot equal to 86.1.
- There is not sufficient sample evidence to support the claimthat the population mean is not equal to 86.1.
