How do I get 0002 for PValue A nutritionist claims that the

How do I get 0.002 for P-Value?

A nutritionist claims that the mean tuna consumption by a person is 3.5 pounds per year. A sample of 80 people shows that the mean tuna consumption by a is 3.1 pounds per year. Assume the population standard deviation is 1.18 pounds. At alpha = 0.02, can you reject the claim? Identify the null hypothesis and alternative hypothesis. Identify the standardized test statistic. Find the P-value.

Solution

YOU HAVE Z = -3.03

YOU NEED THE TABLES OF NORMAL DISTRIBUTION Z

AND YOU NEED TO FIND A VALUE OF Z = 3.03 ( IS THE SAME FOR NEG. VALUES)

AND YOU WILL FIND THE PROBABILITY OR IN THIS CASE P VALUE THAT IS THE SAME

THE VALUE IS 0.00122