A Large Disaster Cleaning Company Estimates That Each of the Jobs

question 111

Multiple Choice

A large disaster cleaning company estimates that each of the jobs it bids on are finished within the bid time with probability 0.3 independent of each other job it bids on. Consider a random sample of 8 jobs that is has contracted.
-What is the mean number of jobs completed within the bid time?

• A)1.3
• B)8.3
• C)2.4
• D)4.3
• E)3.4

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Definitions:

Type II Error

The error that occurs when a false null hypothesis is not rejected, also known as a "false negative" finding.

Population Mean

The average value of a property of the members of a population, which is a comprehensive collection of individuals or objects studied.

Null Hypothesis

A statement used in statistical testing that proposes there is no significant effect or difference, and any observed variation is due to chance.

Power of a Test

The power of a test refers to the probability that the test correctly rejects a false null hypothesis, essentially measuring the test's ability to detect an effect or difference when there is one.