Question

At Brighton Middle School, Mr. Yule asked 50 randomly selected students from each grade level about their favorite subject, and 12 chose science. He used this data to draw the inference that about 25% of middle school students will indicate science is their favorite subject. If there are 200 students all together, did he make a reasonable inference?

A) No, Mr. Yule’s sample is biased and too small to be representative of the population.
B)Yes, Mr. Yule’s sample is small and biased, so it is representative of the population.
C)No, Mr. Yule’s percentage is too large. He should have used 6%.
D)Yes, Mr. Yule’s sample is random and representative of the population.

Answer 1

D

Explanation:

Yes, Mr. Yule’s sample is random and representative of the population

Answer 2

D

Explanation:

To improve your data analysis skills and simplify your decisions, execute these five steps in your data analysis process: 1 Step 1: Define Your Questions. In your organizational or business data analysis, you must begin with the right question(s). Questions should be ... 2 Step 2: Set Clear Measurement Priorities. 3 Step 3: Collect Data. 4 Step 4: Analyze Data. 5 Step 5: Interpret Results. If all of these are good then if should be a good set of samples and if not show why you believe this.

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