Z-test should be used when the parent standard deviation is known and the sample size is greater than or equal to 30 (to satisfy the Central Limit Theorem). A T-test should be used when these two rules do not apply.

6 0

3 years ago

Line segment AB has a length of 4 units. It is translated 2 units to the right on a coordinate plane to obtain line segment A′B′

olchik [2.2K]

Answer:

need help asap

Step-by-step explanation:

4 0

4 years ago

Out of 250 students 85 of them wear braces and 12 of them will be getting braces approximately what percent of students does not

uranmaximum [27]

approximately 2/3 of all students are not wearing braces because 165 (the difference of 250-85) /250 is 0.66

5 0

3 years ago

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