The Customer Service Department of H&R Block Received a Total

question 1

Multiple Choice

The customer service department of H&R Block received a total of 235 telephone requests for a tip- sheet on personal tax or corporate tax. The following table summarizes callers' primary area of interest, and how they first heard about the tip-sheet. Suppose that a caller is selected at random. Find the probability that the caller selected heard about the report from the radio, assuming they are interested in personal tax.

• A) 34/100
• B) 34/235
• C) 34/135
• D) 34/70
• E) None of the choices are correct

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Definitions:

Acceptance Sampling

A statistical quality control method used to decide whether to accept or reject a batch of material based on the inspection of a sample, aiming to ensure product quality while minimizing inspection costs.

LTPD

Lot Tolerance Percent Defective, a statistical measure in quality control that represents the maximum acceptable defect rate for a batch of products.

Defects

Imperfections or faults in a product that cause it to fall short of its intended quality or functionality.

Natural Variations

Differences in data points that occur naturally within a process, resulting from a multitude of small, random factors.