The Seasonal Output of a New Experimental Strain of Pepper

question 58

Multiple Choice

The seasonal output of a new experimental strain of pepper plants was carefully weighed. The mean weight per plant is 15.0 pounds,and the standard deviation of the normally distributed weights is 1.75 pounds. Of the 200 plants in the experiment,how many produced peppers weighing between 13 and 16 pounds?

• A)100
• B)118
• C)197
• D)53

---

Definitions:

Type I Errors

Incorrectly disapproving a correct null hypothesis, famously labeled as a "false positive."

Cohen's D

A statistical measure used to assess the effect size or magnitude of the difference between two group means.

Effect

The impact or change that results from some action or intervention, often measured in experiments to understand causality.

Cohen's D

A measure of effect size indicating the difference between two means expressed in standard deviation units.