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When making a statistical inference about the population proportion, which type of test do you need?

When making a statistical inference about the population proportion, which type of test do you need?

a. both t and Z -tests

b. z-test

c. t-test

d. none of the above

What are the required conditions about n and p when making a statistical inference about the

population proportion?

a. np < 5; n(1-p) < 5

b. np  5; n(1-p)  5

c. np  30; n(1-p)  30

d. np  200; n(1-p)  200

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