It Is Claimed That in a Bushel of Peaches, Less

question 86

Multiple Choice

It is claimed that in a bushel of peaches, less than ten percent are defective. A sample of 400 peaches is examined and 50 are found to be defective. What is the z-statistic?

• A) 0.025
• B) 0.278
• C) -1.65
• D) 1.67

---

Definitions:

Type I Error

The statistical mistake of rejecting a null hypothesis when it is actually true, also known as a "false positive".

Type II Error

The error that occurs when the null hypothesis is falsely not rejected, missing the detection of an actual effect.

Probability

A measure expressing the likelihood of a particular event or outcome occurring.

Two-tailed Test

A statistical test that considers the possibility of both directions of effect (greater than or less than), assessing the significance of a deviation in either direction from a null hypothesis.