# Question

Explain which of the following is a two-tailed test, a left-tailed test, or a right-tailed test.

a. H0: µ = 12, H1: µ < 12

b. H0: µ < 85, H1: µ > 85

c. H0: µ = 33, H1: µ ≠ 33

Show the rejection and non-rejection regions for each of these cases by drawing a sampling distribution curve for the sample mean, assuming that it is normally distributed.

a. H0: µ = 12, H1: µ < 12

b. H0: µ < 85, H1: µ > 85

c. H0: µ = 33, H1: µ ≠ 33

Show the rejection and non-rejection regions for each of these cases by drawing a sampling distribution curve for the sample mean, assuming that it is normally distributed.

## Answer to relevant Questions

A random sample of 14 observations taken from a population that is normally distributed produced a sample mean of 212.37 and a standard deviation of 16.35. Find the critical and observed values of t and the ranges for the ...Consider H0: µ = 40 versus H1: µ > 40. a. A random sample of 64 observations taken from this population produced a sample mean of 43 and a standard deviation of 5. Using α = .025, would you reject the null hypothesis? b. ...A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30 calories. A random sample of 64 cans of this soft drink, which were checked for calories, contained a mean of 32 calories with ...According to the Kaiser Family Foundation, U.S. workers who had employer-provided health insurance paid an average premium of $4129 for family health insurance coverage during 2011 (USA TODAY, October 10, 2011). Suppose a ...A random sample of 500 observations produced a sample proportion equal to .38. Find the critical and observed values of z for each of the following tests of hypotheses using .05. a. H0: p = .30 versus H1: p > .30 b. H0: ...Post your question

0