Answer:
Yes, the manufacturer can estimate the proportion of all customers at this dealership who feel that its service is exceptionally good.
No, the manufacturer cannot estimate, the proportion of customers who rated the service as exceptionally good, about the other dealerships.
Step-by-step explanation:
A sample of 65 customers from a dealership is selected and it is determined that 55% of the customers rated the service as exceptionally good.
According to the central limit theorem if a large random sample selected from an unknown population then the sampling distribution of sample proportion (
) follows a normal distribution.
Then the population proportion can be estimated by the sample proportion value.
That is, 
.
Thus, the manufacturer can estimate the proportion of all customers at this dealership who feel that its service is exceptionally good using the sample proportion value of 
.
Since the sample is selected from a specific dealership, he cannot estimate, the proportion of customers who rated the service as exceptionally good, about the other dealerships.
u have the answer slel........
The area of the banner, expressed in simplest form, is: <em>(9 + 3x) ft²</em>
<h3>How to Determine the Area of a Rectangle</h3>
- The area of a rectangle = length × width
The banner given in the image below has a rectangular shape. So, the area of the banner will be determined using the area of a rectangle.
- length = (3 + x) ft
- width = 3 ft
Area of the banner = (3 + x)3
Area = (9 + 3x) ft²
Therefore, the area of the banner, expressed in simplest form, is: <em>(9 + 3x) ft²</em>
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Learn more about area of rectangle on:
brainly.com/question/14137384
Answer:
He lost 5 coconuts.
Step-by-step explanation:
When he divides the number left among 3 and 5 people the remainder is 2 in each case so the number that each person gets must be 15 or a multiple of 15.
So if x is the number left when he reaches home, then:
2 = x mod 3 and
2 = x mod 5
where x = 15 + 2 = 17 or 30 + 2 = 32 or 45 + 2 = 47.
But we also must satisfy 3 = x mod 4
If x = 17:
17 mod 4 = 1 so its not 17.
32 mod 4 = 0 so it's not 32.
47 mod 4 = 3 so x = 47.
Therefore the number he lost = 52 - 47 = 5.
