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ASHA 777 [7]
3 years ago
13

Construct and interpret a 95% confidence interval estimate for the difference in the mean number of cell phone calls per month f

or 18-24-year-olds and 45-54-year-olds.
Mathematics
1 answer:
dsp733 years ago
5 0

Answer:

25 per month

Step-by-step explanation:

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Sara bought a new modem for $85, and a sales tax of $5.95 was added to the cost of the product. What was the sales tax rate?
Papessa [141]

Answer: 14

Step-by-step explanation:

4 0
3 years ago
The value of y varies directly with x, and when x = y = 25. What is the value of
kipiarov [429]

Answer:

A 233.3 or 233 1/3

Step-by-step explanation:

X =1/4

Y =25

1/4 X 100= 25

2 1/3 X 100= 233.3

6 0
2 years ago
The type of data that contains results from other people that are of similar age and gender is known as
yuradex [85]

The type of data that contains results from other people that are of similar age and gender is known as normative data.

<h3>What is normative data?</h3>

Normative data is a type of data that is observed that contains information about the characteristics of a population of interest. For example, normative data about students in a class would contain information such as age, gender, height.

To learn more about data, please check: brainly.com/question/20841086

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4 0
2 years ago
What is the slope of (5,5) and (0,1)​
irina1246 [14]

Answer:

4/5

Step-by-step explanation:

Use the formulae

y2-y1 divided by x2- x1 then you will get your slope

3 0
3 years ago
Find the solution to the system of equations. <br> x+y+z=23 <br> y+z=14 <br> z=9
Ne4ueva [31]
<span>A) x+y+z=23
B) y+z=14
C) z=9
Since z = 9 then
A) x + y = 14
B) y = 5
A) </span><span><span>x + y+ z=23</span>
A) x + 5  + 9 = 23
A) x = 9
 
</span>
3 0
3 years ago
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