Do the students in the campus spend less on food than an average American resident does? To answer this question, expenses of 25 students were calculated. Food expenses of an average American person are $220. Interpret the output of the Shiny app "Randomization test for a population mean" using a significance level of 0.05.
A) There is convincing evidence that students' expenses are less than the national average.
B) There is no convincing evidence that students' expenses are less than the national average.
C) There is convincing evidence that students' expenses are equal to the national average.
D) Students' expenses are certainly equal to the national average.
E) The population is too large to make a conclusion.

Question

Do the students in the campus spend less on food than an average American resident does? To answer this question, expenses of 25 students were calculated. ​  ​ Food expenses of an average American person are $220. Interpret the output of the Shiny app "Randomization test for a population mean" using a significance level of 0.05. ​  ​
A) There is convincing evidence that students' expenses are less than the national average. 
B) There is no convincing evidence that students' expenses are less than the national average. 
C) There is convincing evidence that students' expenses are equal to the national average. 
D) Students' expenses are certainly equal to the national average. 
E) The population is too large to make a conclusion.

Quizplus · Accepted Answer

The p-value is 0.024, which is smaller than the significance level of 0.05. This means that we reject the null hypothesis and conclude that there is convincing evidence that students' expenses are less than the national average.

Do the Students in the Campus Spend Less on Food