Mathematics, 07.04.2020 18:59 amanda1717
After surveying students at a college, a campus organization calculated that a 95% confidence interval for the mean cost of food for one term is ($1372, $1562). Now the organization is trying to write its report and is considering the following interpretations. Comment on each. Complete parts a through e below.
a) 95% of all students pay between $1372 and $1562 for food.
Comment on the given interpretation. Choose the correct answer below.
A. The interpretation is incorrect. A confidence interval estimates a sample parameter.
B. The interpretation is incorrect. A confidence interval is not about a population parameter.
C. The interpretation is incorrect. A confidence interval is not about individuals in the population.
D. The interpretation is correct. A confidence interval estimates a population parameter.
b) 95% of the students paid between $1372 and $1562.
c) We're 95% sure that students in this sample averaged between $1372, $1562 for food.
d) 95% of all samples of students will have average food costs between $1372 and $1562.
e) We're 95% sure that the average amount of all students pay between $1372 and $1562.
Answers: 1
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After surveying students at a college, a campus organization calculated that a 95% confidence interv...
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