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Science Quiz Scores
Consider the Hypotheses $\sigma$

question 14

Essay

NARRBEGIN: Science Quiz Scores
Science Quiz Scores
Consider the hypotheses H₀: $\sigma$ ² = 20 vs. H₁: $\sigma$ ² > 20. Assume that Science scores on a 25-point quiz for a random sample of 5 students were drawn from a normal population. These were: 18, 16, 10, 13, and 23.NARREND
-The sales manager of a large multinational corporation is concerned that some salespersons perform very well and others quite poorly. To help analyze the problem he draws a random sample of 20 salespersons, determines their commission incomes (in thousands of dollars), and calculates the following statistics: $\bar { x }$ = $37.2, and s = $7.8. Do these statistics provide sufficient evidence at the 5% significance level to conclude that the population variance exceeds $35 million²?

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Definitions:

Conclusion

The end or finish of an event, process, or text, typically the part where final judgments or statements are made.

Direct Observation

The method of gathering data through immediate, firsthand observation of people or phenomena.

Knowledge

Acquainted with or understanding of facts, information, descriptions, or skills acquired through experience or education.

Visual

Relating to seeing or sight, involving the use of vision.