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Mandarinka [93]
3 years ago
15

A trade magazine routinely checks the​ drive-through service times of​ fast-food restaurants. 95​% confidence interval that resu

lts from examining 609 customers in one​ fast-food chain's​ drive-through has a lower bound of 160.8 seconds and an upper bound of 160.8 seconds. What does this​ mean?
Mathematics
1 answer:
Anastaziya [24]3 years ago
8 0

Answer:

z= 1.70 Since the test statistic is less than the critical​ value, we can conclude that the average length of an online video is not more than 8 minutes

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Choose the answer that shows what to do in the process step, and what the solution (answer is).
iren [92.7K]

nime halibut na sijui pleade

7 0
3 years ago
The formula for estimating the number, N, of a certain product sold is N = 8800ln(7t + 9), where t is the number of years after
arsen [322]
To determine or predict the expected number of sales after 2 years, we substitute 2 to the t of the givne equation.
                           N = (8800)xln(7(2) + 9)
                                N = 27,592.34
Thus, it is expected that the number of sales after 2 years is 27,592 units. 
6 0
3 years ago
Simplify:
wlad13 [49]

Answer:

The answer to your question is  letter C. 7y³  + 7n²y²  - 22y²

Step-by-step explanation:

                                   y²(4y + 7n² + 2) - 3y² (-y + 8)

Multiply

                                 4y³ + 7n²y² + 2y² + 3y³ - 24y²

Use the associative property for like terms

                               (4y³ + 3y³) + (2y² - 24y²) + 7n²y²

Simplify like terms

                                7y³ - 22y² + 7n²y²   or    7y³  + 7n²y²  - 22y²        

5 0
4 years ago
NEED ANSWER FAST PLZ
tankabanditka [31]

Easy you have to subtract 95 by 8 then you get your answer hope it helped!

5 0
3 years ago
Read 2 more answers
!!!!PLEASE HELP!!!
DaniilM [7]

Answer:

a^2 + b^2 = c^2

a^2 + 32^2 = 58^2

a^2 + 1024 = 3364

a^2 = 2340

a = 48.37

Step-by-step explanation:

5 0
3 years ago
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