A researcher wants to determine the average given below. Describe how the resear

Question

A researcher wants to determine the average given below. Describe how the researcher should apply the five basic steps in a statistical study. (Assume that all the people in the poll answered truthfully.)

The average time to failure of batteries in a particular model of massager

Determine how to apply the first basic step in a statistical study in this situation. Choose the correct answer below.

o A. The population is all massagers of this model O B. The population is all massagers of this model whose batteries do not last longer than average O C. The population is all massagers not of this model O D. The population is all massagers of this model whose batteries last longer than average

Explanation / Answer

First basic step - Option B - As we want the average time of failures of batteries in particular model of massagers.

Second basic step - Option A - As want to check failure time of batteries then data should be raw data of batteries life from massagers whose batteries do not last longer.

Fourth basic step - Option C - If correct procedure is followed for estimating sample estimate then that estimate can be used as population average.

Fifth basic step - Option B - As we are using sample statistic to estimate population parameter then conclusion from sample statistic should be drawn with complete confidence.

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