TABLE 9-1 Microsoft Excel Was Used on a Set of Data Involving

question 131

True/False

TABLE 9-1
Microsoft Excel was used on a set of data involving the number of defective items found in a random sample of 46 cases of light bulbs produced during a morning shift at a plant. A manager wants to know if the mean number of defective bulbs per case is over 20 during the morning shift. She will make her decision using a test with a level of significance of 0.10. The following information was extracted from the Microsoft Excel output for the sample of 46 cases:
n = 46; Arithmetic Mean = 28.00; Standard Deviation = 25.92; Standard Error = 3.82;
Null Hypothesis: H₀ : μ ≤ 20.000; α = 0.10; df = 45; T Test Statistic = 2.09;
One-Tail Test Upper Critical Value = 1.3006; p-value = 0.021; Decision = Reject.
-Referring to Table 9-1, the manager can conclude that there is sufficient evidence to show that the mean number of defective bulbs per case is over 20 during the morning shift with no more than a 5% probability of incorrectly rejecting the true null hypothesis.

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Definitions:

Learned Pattern

Behaviors or responses that are acquired through observation, experience, or teaching.

Undesirable Behavior

Actions or conduct deemed inappropriate, disruptive, or harmful by societal, cultural, or professional standards.

Environmental Conditions

Refers to the various physical and biological factors that affect the life and development of organisms.

Stimulus Control

A behavior modification technique that involves changing the environment to reduce undesired behaviors by associating them with different cues.