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Annette [7]
3 years ago
12

A survey of the mean number of cents off that coupons give was conducted by randomly surveying one coupon per page from the coup

on sections of a recent San Jose Mercury News. The following data were collected: 20% 75c; 50c; 65c; 300; 55 40C; 40C; 30C; 55, $1.50; 400; 65; 40C. Assume the underlying distribution is approximately normal. a. b. c. d. Define the random variables X and X in words. Which distribution should you use for this problem? Explain your choice. Construct a 95% confidence interval for the population mean worth of coupons. i. State the confidence interval

Mathematics
1 answer:
Luda [366]3 years ago
5 0

Answer:

Explanation has been given in the attachment.

Step-by-step explanation:

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Xiao bought ​ 4310 ​ gallons of gas that cost $2.50 per gallon.
Vikentia [17]

Answer:

$10775

Step-by-step explanation:

If 1 gallon of gas is $2.50, then the cost of 4310 gallons of gas will be:

4310 * 2.50

= $10775

Hope this answer was helpful!!

8 0
3 years ago
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What is the answer to 2+4(7)-2
Katena32 [7]

Answer:

this is the answer: 28

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Step-by-step explanation:

5 0
3 years ago
What is W in this equation <br> -w–11≤w–5
zhannawk [14.2K]

Step-by-step explanation:

-w - 11 < or = w - 5

-2w - 11 < or = -5

-2w < or = -16

w > or = -8

5 0
3 years ago
The volume is a rectangular prism is 7,200 cubic centimeters. It has a length of 24 centimeters and a width of 20 centimeters. W
Setler [38]
7,200 = (24)(20)h
15=h (just divide)
To check, 20*24*15 = 7,200 cubic centimeters so 15 cm is right
7 0
3 years ago
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Write the equation of line in slope-intercept form. Line parallel to y=−2x+3 that passes through the point (−100,−100)
GrogVix [38]

Remark

The line you want is parallel to y = - 2x + 3

That means it has the same slope as the given line.  The given line has a slope of  -2

y = -2x + b is what you have so far. Now you have to use the point to get b

y = - 100

x = - 100

Solve for b

-100 = -2(-100) + b

-100 = 200 + b       Notice the sign change. Two minus's make a plus. Subtract 200 from both sides.

- 100 - 200 = b

- 300 = b

Answer

y = - 2x - 100

3 0
3 years ago
Read 2 more answers
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