In a sample of 21 desktop PCs, it was found that their lifespans had a mean of 6.8 years

| August 30, 2017

Question
In a sample of 21 desktop PCs, it was found that their lifespans had a mean of 6.8 years with a standard deviation of 2.4 years. Consider a hypothesis test that uses 0.05 significance to test the claim that the mean lifespan of desktop PCs is less than 7 years.

What is(are) the critical value(s)
What is the test statistic?

What is the P-Value?

What is your decision?

What is your conclusion?

Get a 30 % discount on an order above $ 100
Use the following coupon code:
RESEARCH
Order your essay today and save 30% with the discount code: RESEARCHOrder Now
Positive SSL