Question

10. A new breed of crop plant is claimed to have a greater leaf surface area that the existing breed which has a leaf area of 12.22. Thirty plants of the new breed were measured and had a mean area of 12.32. The sample standard deviation was 0.21. Test whether the claim of greater leaf area is correct. Test at an alpha of 0.01.

The symbols below can be copied and pasted for answers to some of the following questions.

                                    µ   p   ≥   ≤   ≠   >   < =    H₀:     H_a:   

A] What type of test is this?

a. beta-test of means               c. t-test of means           e. c² Test of proportions

b. a-Test of proportions           d. F-Test of means         f. t-Test of proportions

          ➔       

B] What is the stated claim (include the numerical value associated with the claim). Type in a sentence using words not symbols.

          ➔                               

C]   What is the stated claim in symbols? Do not type in a sentence, type in (or copy and paste) mathematical symbols.

          ➔                               

D] What are the Alternative Hypothesis (H₀) and the Null Hypothesis (H_a) in symbols?: (PROVIDE TWO ANSWERS)

Alternative Hypothesis:          ➔                               

Null hypothesis:                      ➔                                        

E] What type of tails does this test have?

a. Fat tailed          c. Meta-tailed                                e. Two tailed        

b. Right tailed      d. Inverse tailed             f. Left tailed

Answer 1