A movie theater chain has lost business during a global health crisis. They are surveying a SRS of 70 customers

Advanced Placement (AP)

2 answers:

Makovka662 [10]2 years ago

8 0

Answer:

The sampling distribution of (P a- P b) will not be normal, because we expect fewer than 10 customers who do not want to order tickets digitally in both samples.

Explanation:

khan

zysi [14]2 years ago

8 0

Answer: D

Not normal, because we expect fewer than 10 customers who do not want to order tickets digitally in both samples.

Explanation: Khan Answer

10% of customers in July would not want to order tickets digitally because 90% do. In an SRS of 70 customers, that means only 7 would not want to order tickets digitally. 13% of customers in August would not want to order tickets digitally because 87% do. In an SRS of 70 customers, that means only 9.1 would not want to order tickets digitally. Because both of these counts are less than 10, we can not assume normality.

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What happens when you multiply 4 times 2, add 6, divide by 2, subtract 3 explain

dezoksy [38]

4•2+6/2-3=4

The answer would be 4
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3 years ago

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I can’t figure this problem out

Natalka [10]

Answer:

Explanation:

Alright so the way to do this is to use properties of integrals to make our life easier.

So we have:

$\int\limits^4_1 {(3f(x)+2)} \, dx$

So lets break this up into two different integrals that represent the same area.

$\int\limits^4_0 {f(x)} \, dx - \int\limits^1_0 {f(x)} \, dx = \int\limits^4_1 {f(x)} \, dx$

Lets think about what is going on up there. The integral from four to zero gives us the area under the curve of f(x) from four to zero. If we subtract this from the integral from one to zero (the area under f from one to zero) we are left with the area under f from four to one! Hence:

$\int\limits^4_1 {f(x)} \, dx$