Question

A university is comparing the grade point averages of biology majors with the grade point averages of engineering majors. 25 students from each major are randomly selected. The mean and standard deviation for each sample are shown in the table. \begin{tabular}{|l|l|l|} \hline & Sample Mean & Sample Standard Deviation \\ \hline Biology Majors & 3.22 & 0.05 \\ Engineering Majors & 3.17 & 0.03 \\ \hline \end{tabular} The university wants to test whether there is a significant difference in the GPAs for students in the two majors. What are the null and alternative hypotheses that should be used to test this claim? (1 point) \begin{itemize} \item null: $\mu_1 - \mu_2 > 0$; alternative: $\mu_1 - \mu_2 < 0$ \item null: $\mu_1 - \mu_2 \neq 0$; alternative: $\mu_1 - \mu_2 = 0$ \item null: $\mu_1 - \mu_2 = 0$; alternative: $\mu_1 - \mu_2 < 0$ \item null: $\mu_1 - \mu_2 = 0$; alternative: $\mu_1 - \mu_2 \neq 0$ \end{itemize}

          A university is comparing the grade point averages of biology majors with the grade point averages of engineering majors. 25 students from each major are randomly selected. The mean and standard deviation for each sample are shown in the table.

\begin{tabular}{|l|l|l|}
\hline
 & Sample Mean & Sample Standard Deviation \\
\hline
Biology Majors & 3.22 & 0.05 \\
Engineering Majors & 3.17 & 0.03 \\
\hline
\end{tabular}

The university wants to test whether there is a significant difference in the GPAs for students in the two majors. What are the null and alternative hypotheses that should be used to test this claim?
(1 point)

\begin{itemize}
    \item null: $\mu_1 - \mu_2 > 0$; alternative: $\mu_1 - \mu_2 < 0$
    \item null: $\mu_1 - \mu_2 \neq 0$; alternative: $\mu_1 - \mu_2 = 0$
    \item null: $\mu_1 - \mu_2 = 0$; alternative: $\mu_1 - \mu_2 < 0$
    \item null: $\mu_1 - \mu_2 = 0$; alternative: $\mu_1 - \mu_2 \neq 0$
\end{itemize}

A university is comparing the grade point averages of biology majors with the grade point averages of engineering majors. 25 students from each major are randomly selected. The mean and standard deviation for each sample are shown in the table.

Sample Mean Sample Standard Deviation

Biology Majors 3.22 0.05

Engineering Majors 3.17 0.03

The university wants to test whether there is a significant difference in the GPAs for students in the two majors. What are the null and alternative hypotheses that should be used to test this claim?
(1 point)

* null: μ1 - μ2 > 0; alternative: μ1 - μ2 < 0

* null: μ1 - μ2 ≠ 0; alternative: μ1 - μ2 = 0

* null: μ1 - μ2 = 0; alternative: μ1 - μ2 < 0

* null: μ1 - μ2 = 0; alternative: μ1 - μ2 ≠ 0

Added by James D.

Question

Please give Ace some feedback