THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 210

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The length of time it takes to be seated at a local restaurant on Friday night is normally distributed with a mean of 15 minutes and a standard deviation of 4.75 minutes.
-What is the probability that you have to wait more than 20 minutes to be seated?

• A)0.1761
• B)0.3531
• C)0.6761
• D)0.1469

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Definitions:

Qualitative Data

Data that is descriptive and categorizes objects or events, not expressed as numbers.

Single Population

Pertains to a group of similar items or individuals from which data can be collected for statistical analysis, where the group has distinct and uniform characteristics.

Z Test

This method tests if two populations' means differ, assuming known variances and a large sample size.

Group 1

A designation for the first cohort or category in an experimental or observational study, often used as a reference or control group.