Question

A group of business administration students conducted a survey on their university campus to find out the student demand for a product, a protein supplement for fruit smoothies. One of the first steps was to extract a random sample of 168 students and obtain data that could be useful to develop their marketing strategy. If 138 students decide to drink smoothies in the afternoon. Find the margin of error for the 90% confidence interval for the proportion of students who drink smoothies in the afternoon.

Answer #1

A group of business administration students conducted a survey
on their college campus to find out student demand for a product, a
protein supplement for fruit smoothies. One of the first steps was
to extract a random sample of 280 students and obtain data that
could be useful in developing their marketing strategy.
If {a ratio of 0.42 students decide to drink smoothies in the
afternoon. Find the margin of error for the 90% confidence interval
for the proportion of...

A group of statistics students conducted a survey about smoking
habits on campus to determine the proportion of students who
believe that vaping is less harmful than smoking cigarettes. Of the
100 students surveyed, 75% think that smoking hookah is less
harmful than smoking cigarettes. Since we donâ€™t have an estimate
for the population proportion (p), we will use when calculating the
standard perror.a.Verify that the conditions are met to use a
Normal Model. 4b. Create a 90% Confidence Interval....

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