Question

1. Most adults would erase all of their personal information online if they could. A software firm survey of 439 randomly selected adults showed that 55% of them would erase all of their personal information one line if they could. Find the value of the test statistic.

2. Fewer than 91% of adults have a cell phone. In a reputed will poll of 1100 for adults 85% said they have a cell phone. Find the value of the test statistic.

3. The mean poss rate and beats per minute of adult males = 69 beats per minute. For a random sample of 125 adult males the mean pulse rate is 69.3 beats per minute and the standard deviation is 11.5 beats per minute. Find the value of the test statistic.

Answer 1

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