Question: What is the primary difference between a t-test and a z-test? a.) The formulas for calculating these statistics are unrelated. b.) T-tests are used for

What is the primary difference between a t-test and a z-test? a.) The formulas for calculating these statistics are unrelated. b.) T-tests are used for comparing proportions, while z-tests compare means. c.) Z-tests assume a normal distribution, while t-tests rely on the student's t-distribution. d.) The t-distribution has one tail, whereas the z-distribution is two-tailed

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