QuestionDetermine whether the number described is a statistic or a parameter. The average ACT score of all testers from a local high school is 23. Parameter Statistic
Studdy Solution
STEP 1
1. A parameter is a numerical summary that describes an entire population.
2. A statistic is a numerical summary that describes a sample from the population.
STEP 2
1. Identify the group being described.
2. Determine if the group is a population or a sample.
3. Classify the number as a parameter or a statistic.
STEP 3
Identify the group being described: "all testers from a local high school."
STEP 4
Determine if the group is a population or a sample. Since the description refers to "all testers" from the local high school, it represents the entire population of testers from that school.
STEP 5
Classify the number. Since the average ACT score of 23 describes the entire population of testers from the local high school, it is a parameter.
The number described is a:
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