Please help and show work. A sample of 48 observations is selected from a normal population. The sample mean is 22, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H₀: 21 H₁: > 21 a. Is this a one- or two-tailed test? multiple choice 1

• "One-tailed"the alternate hypothesis is greater than direction.
• "Two-tailed"the alternate hypothesis is different from direction.

b. What is the decision rule? (Round your answer to 2 decimal places.) c. What is the value of the test statistic? (Round your answer to 2 decimal places.) d. What is your decision regarding H₀? multiple choice 2

• Reject
• Do not reject

e. What is the p-value? (Round your answer to 4 decimal places.)