A reporter bought a hamburger at each of a set of random stores of two different restaurant chains. She then had the number of calories in each hamburger measured. Can the reporter conclude, at $\ddagger=.05,$ that the two sets of hamburgers have different amounts of calories? (Use the equal variances formula.)
$$\begin{array} { | l | c | c | }
\hline & \text { Women } & \text { Men } \
\hline \text { Sample size } & 7 & 8 \
\hline \text { Mean spending amount } & 80 & 95 \
\hline \text { Sample variance } & 400 & 800 \
\hline
\end{array}$$
A) No, because the test value -0.09 is inside the interval (-2.14, 2.14)
B) No, because the test value -0.09 is inside the interval (-2.16, 2.16)
C) No, because the test value -1.17 is inside the interval (-2.16, 2.16)
D) No, because the test value -2.00 is inside the interval (-2.16, 2.16)

Question

A reporter bought a hamburger at each of a set of random stores of two different restaurant chains. She then had the number of calories in each hamburger measured. Can the reporter conclude, at $\ddagger=.05,$ that the two sets of hamburgers have different amounts of calories? (Use the equal variances formula.)
$$\begin{array} { | l | c | c | } 
\hline & \text { Women } & \text { Men } \
\hline \text { Sample size } & 7 & 8 \
\hline \text { Mean spending amount } & 80 & 95 \
\hline \text { Sample variance } & 400 & 800 \
\hline
\end{array}$$
A) No, because the test value -0.09 is inside the interval (-2.14, 2.14)
B) No, because the test value -0.09 is inside the interval (-2.16, 2.16)
C) No, because the test value -1.17 is inside the interval (-2.16, 2.16)
D) No, because the test value -2.00 is inside the interval (-2.16, 2.16)

Quizplus · Accepted Answer

The Answer of A reporter bought a hamburger at each of a set of random stores of two different restaurant chains. She then had the number of calories in each hamburger measured. Can the reporter conclude, at $\ddagger=.05,$ that the two sets of hamburgers have different amounts of calories? (Use the equal variances formula.)
$$\begin{array} { | l | c | c | } 
\hline & \text { Women } & \text { Men } \
\hline \text { Sample size } & 7 & 8 \
\hline \text { Mean spending amount } & 80 & 95 \
\hline \text { Sample variance } & 400 & 800 \
\hline
\end{array}$$
A) No, because the test value -0.09 is inside the interval (-2.14, 2.14)
B) No, because the test value -0.09 is inside the interval (-2.16, 2.16)
C) No, because the test value -1.17 is inside the interval (-2.16, 2.16)
D) No, because the test value -2.00 is inside the interval (-2.16, 2.16)

A Reporter Bought a Hamburger at Each of a Set ‡=.05,\ddagger=.05,‡=.05,

A Reporter Bought a Hamburger at Each of a Set $\ddagger=.05,$