# Question: Make the following tests of hypotheses a H0 80

Make the following tests of hypotheses.

a. H0: µ = 80, H1: µ ≠ 80, n = 81, = 76.5, σ = 15, α = .10

b. H0: µ = 32, H1: µ ≠ 32, n = 45, = 26.5, σ = 7.4, α = .01

c. H0: µ = 55, H1: µ ≠ 55, n = 100, = 60.5, σ = 4, α = .05

a. H0: µ = 80, H1: µ ≠ 80, n = 81, = 76.5, σ = 15, α = .10

b. H0: µ = 32, H1: µ ≠ 32, n = 45, = 26.5, σ = 7.4, α = .01

c. H0: µ = 55, H1: µ ≠ 55, n = 100, = 60.5, σ = 4, α = .05

## Relevant Questions

A consumer advocacy group suspects that a local supermarket’s 10-ounce packages of cheddar cheese actually weigh less than 10 ounces. The group took a random sample of 20 such packages and found that the mean weight for ...A telephone company claims that the mean duration of all long-distance phone calls made by its residential customers is 10 minutes. A random sample of 100 long-distance calls made by its residential customers taken from the ...A study claims that all homeowners in a town spend an average of 8 hours or more on house cleaning and gardening during a weekend. A researcher wanted to check if this claim is true. A random sample of 20 homeowners taken by ...Consider the null hypothesis H0: µ = 100. Suppose that a random sample of 35 observations is taken from this population to perform this test. Using a significance level of .01, show the rejection and non-rejection regions ...The mean balance of all checking accounts at a bank on December 31, 2011, was $850. A random sample of 55 checking accounts taken recently from this bank gave a mean balance of $780 with a standard deviation of $230. Using a ...Post your question