Answer:
Explained below.
Step-by-step explanation:
According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normal.
Then, the mean of the sampling distribution of sample means is given by,

And the standard deviation of the sampling distribution of sample means is given by,

So, if the sample of daily calcium intake of Americans collected is more than 30, then the sampling distribution of
will be approximately normal.
Answer:
97.06
Step-by-step explanation:
5047 / 52
= 97.06
Answer:
62
Step-by-step explanation:
The total of a triangle is 180
so 78+48 is 118
180-118=62
Answer: Rebate applied AFTER the discount
Step-by-step explanation:
Because the rebate value stays the same no matter what, but the discount doesn't.