Question

Is there such a thing as a “digital hoarder?” According to a recent news report, 52% of
adults never delete any apps or files from any of their digital devices. Imagine that we
choose a simple random sample of 145 adults and we ask these adults if they have ever
deleted apps or files from any of their digital devices. We know the percentage of adults
who answer “no” to this question will vary, or be different, from sample to sample, if the
sampling method is repeated. In fact, if we look at the resulting sampling distribution (based
on samples of size n = 145), we will see a distribution that is Normal in shape, with a mean
(or center) of 52% (or 0.520) and a standard deviation of 4.1% (or 0.0410). Because the
distribution has a Normal shape, we know that approximately 95% of the values in this
distribution will be between
A. 50% and 54%.
B. 47.9% and 56.1%.
C. 43.8% and 60.2%.
D. 42% and 62%
E. 35.4% and 68.6%.

Answer 1