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.
Answer: X = 5.9
Step-by-step explanation:
Answer:
it's been good thanks, how was yours?
Step-by-step explanation:
Material needed = πD x height
π x 3 x (3 x 12) //multiply by 12 to change the 3 feet to inches
= 339.29 in²
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Answer: 339.29 in²
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Rotation. it’s rotating 180 degrees since it gets reflected twice