A Horticulturist Wants to Test the Effectiveness of Four Types

question 13

Multiple Choice

A horticulturist wants to test the effectiveness of four types of fertilizer on the growth rate of Bermuda grass.Six sections of grass are randomly assigned to each of the four fertilizer types,and the rate of growth for each section is measured.The box plots for the four types of fertilizer are shown below.

• A)Yes,the widths of all the boxes are the same.
• B)No,the data need to be log-transformed before conducting the ANOVA.
• C)No,the centre lines for fertilizers three and four are higher than one and two.
• D)Yes,the spreads of the four box plots appear similar enough to satisfy the assumption.
• E)No,the data probably need to be re-expressed before conducting the ANOVA.

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Definitions:

Monthly Compounded

Pertains to interest or any financial metric that is calculated and added to the principal balance every month.

Nominal Rate

The stated interest rate of a bond or loan, not accounting for compounding or inflation effects.

Annually Compounded

An investment or interest calculation method where the interest earned over the year is added to the principal at year-end, affecting the amount earned the following year.

Nominal Rate

The nominal rate refers to the interest rate stated on a loan or investment agreement before adjusting for inflation or other factors.