Cost of most expensive product = $40
total money spent at the store
= 18 + 22 + 35
= 75
30/4 is also equal to 7 1/2.
30/4 = 7.5
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Answer:
The 99% confidence interval for the proportion of ASD in Arizona is (0.014, 0.018).
Step-by-step explanation:
The information provided is as follows:

The sample proportion is:

The critical value of <em>z</em> for 99% confidence level is, <em>z</em> = 2.56.
Compute the 99% confidence interval for the proportion of ASD in Arizona as follows:


Thus, the 99% confidence interval for the proportion of ASD in Arizona is (0.014, 0.018).
Answer:
79
Step-by-step explanation:
Let the original number be x.
x/2 = 39.5
x = 39.5 × 2
x = 79