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Statistical Problems

Statistics: Shopping Mall Experience and z-text Vs. t-test

View Solution # 27229

Price: $3.00

PROBLEM 4:
A confidence interval of 90% was used to estimate the proportion of customers who buy at least two items during their shopping mall experience. A random sample of 150 customers produced the following confidence interval: 32% +/- 4%. What is the best way to explain the results?

PROBLEM 5 (2 points):
In your own words, when you should use a z-test versus a t-test?

Solution

The two questions are answered in the document provided with the solution. The z-test and t-test are compared on their application in a brief paragraph.

No. of Words: n/a Help

References: n/a Help

Price: $3.00

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