A Dean of Students Conducted a Survey to Test the Claim

question 38

Essay

A Dean of Students conducted a survey to test the claim that women spend more time visiting
the STEM lab than men do. A survey was administered to a simple random sample of 15
female student volunteers and 12 male volunteers that asked, "How many minutes have you
spent in the STEM lab this semester?" The results are shown below. $$\begin{array} { | c | c | } \hline \text { Women } & \text { Men } \\\hline 180 & 220 \\\hline 150 & 120 \\\hline 180 & 45 \\\hline 60 & 15 \\\hline 90 & 30 \\\hline 0 & 80 \\\hline 75 & 10 \\\hline 60 & 90 \\\hline 240 & 180 \\\hline 80 & 90 \\\hline 120 & 60 \\\hline 180 & 280 \\\hline 90 & \\\hline 60 & \\\hline 45 & \\\hline\end{array}$$ Test the claim at the 1% level of significance. Assume that the number of minutes that
women and men spent in the STEM lab is normally distributed. Do not assume that the
population standard deviations are equal. Include your null and alternative hypotheses, the
test statistic, P-value or critical value(s), conclusion about the null hypothesis, and conclusion
about the claim in your answer.

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Definitions:

Price of Gasoline

The cost per unit of gasoline, influenced by factors such as crude oil prices, taxes, demand, and supply.

TC Curves

They represent total cost curves, which show the total cost of producing different quantities of a good or service at various levels of production.

Sunk Cost

A cost that has already been incurred and cannot be recovered.

Nonrefundable

Describing a payment or deposit that cannot be returned or refunded back to the payer under most circumstances.