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A study was carried out on the average expenditure on food carried out by a student...

A study was carried out on the average expenditure on food carried out by a student from the Mayagüez campus for a month. For this, 180 students enrolled in the 2019-II semester were randomly selected and it was found that on average a student spends $ 300 per month.
With this information, check ALL the correct statements:
Select one or more:
a. The parameter is the average food expenditure of the 180 students.
b. The variable of interest is food expenditure.
c. The value of the statistic is $ 300.
d. The Sample is made up of the 180 randomly selected students.
e. The population is made up of 180 students.
Math   Statistics-And-Probability   
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Answer #1

>>the parameter is average food expense of student so option a is valid

>> The variable of interest is food expense so option b is also valid

>> test statistics is the average value of the expense of 180 student that is 300, so option c is also valid

>> As the sample is made by randomly choosing 180 students from 2019 -II semester, so option d is also valid

>> As the population size( the total number of students in Mayagüez campus) is not given, option e is invalid

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