Question

In a survey taken in 1985, of the 21 households surveyed in Middletown, Ohio, the proportion of households having a personal computer was 11%. The U.S. government census data for 2005 suggested that 38% of households in the United States had a personal computer.

Which statement(s) below support the large discrepancy between the sample proportion of households having a personal computer in 1985 and the population proportion of households having a personal computer in 2005?


The sample size was too small.
The sample was not truly random.
The data from 1985 to 2005 have changed.
The sample statistic is equal to the population parameter.
Only statements I, II, and III support the discrepancy.
Only statements I, III, and IV support the discrepancy.
Only statements II and III support the discrepancy.
Only statement IV supports the discrepancy.

Answer 1

The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound.