Advanced Placement (AP), 01.04.2020 02:54 ndkjfgj4368

A recent study reported that high school students spend an average of 94 minutes per day texting. Jenna claims that the average for the students at her large high school is greater than 94 minutes. She will conduct a study to investigate this claim.

(a) To collect data, Jenna will select a sample of size 32 from the population.

(i) State Jenna’s population of interest.

(ii) Name and describe a sampling method Jenna could use that will satisfy the conditions needed for inference to the population.

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Answer from: marie2061

The population refers to all subjects which are eligible to be selected as part of a sample once they meet the criteria for the study in question. Hence, Jeena's population of interest would be all high school students.

Since the study encompass all high school students, therefore, all students that are high school attendees form the population of interests. A sampling technique which may be employed is a simple random sample of 32 students belonging to one or more high schools. Hence, a simple random sampling technique may be employed.

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Answer from: minecraft37385

Jeena would possibly be interested in the students of the high school that she attends, as mentioned in the passage.

The sampling method that she could opt for is:

Random sampling method.

Explanation:

Jeena is going to be collecting data from a minimum of 32 students, as is the minimum number of samples required to conduct an experimental study.

Since her claim is that the students in her high school spend more than 94 minutes per day in texting, she could narrow down the age range that she would want to study to claim her study.

The average age for any high school student is 14 to 18 years; therefore she could narrow it down to:

14-to-16 years or

16-to-18 years.

Such a bifurcation would make her study more focused and easier to calculate the findings on further stages.

Regarding the sampling method, " simple random sampling" would work best that would satisfy the conditions needed for inference to the population. Random sampling is an unconditioned selection of participants within the focused group.

Hence, these could be the steps that she could follow to start her study.

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