Suppose You Want to Test the Claim That $\mu _ { 1 } > \mu _ { 2 } .$

question 97

Multiple Choice

Suppose you want to test the claim that $\mu _ { 1 } > \mu _ { 2 } .$ Two samples are random, independent, and come from populations that are normally distributed. The sample statistics are given below. Assume that $\sigma { } _ { 1 } ^ { 2 } \neq \sigma_ { 2 } ^{ 2 }$ At a
Level of significance of α $\alpha$ = 0.01, when should you reject H₀? $$\begin{array} { l l } \mathrm { n } _ { 1 } = 18 & \mathrm { n } _ { 2 } = 13 \\\overline { \mathrm { x } }_ 1 = 595 & \overline { \mathrm { x } }_ 2 = 580 \\\mathrm {~s} 1 = 40 & \mathrm {~s} 2 = 25\end{array}$$

• A)Reject H₀ if the standardized test statistic is greater than 2.681.
• B)Reject H₀ if the standardized test statistic is greater than 1.699.
• C)Reject H₀ if the standardized test statistic is greater than 2.179.
• D)Reject H₀ if the standardized test statistic is greater than 3.055.

Understand the basis and impact of economists' and environmentalists' opinions on environmental issues.

Identify and differentiate between point and nonpoint sources of pollution.

Recognize factors determining the damage produced by pollutants.

Explain the concept of the tragedy of the commons and its impact on the environment.

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Definitions:

Decimal

Numbers that are expressed as a fraction of a part using 10 as its base number; it also refers to the period used to separate a whole number from a fraction, as in 10.2, otherwise read as “ten and two-tenths.”

Fraction

A numerical quantity that is not a whole number, representing a part of a whole.

Base Number

A mathematical value serving as a foundational digit in a numbering system, determining its counting process, such as 2 in binary or 10 in decimal.

Dosages

The prescribed amount and frequency of medication intake or drug administration.