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svetoff [14.1K]
2 years ago
8

20. A man invests $20,000 at an annual interest rate of 7%, and $ 12,000.00 at an

Mathematics
1 answer:
olganol [36]2 years ago
7 0

Answer:

The answer is (5.)2,800.00

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A survey of 35 people was conducted to compare their self-reported height to their actual height. The difference between reporte
monitta

Answer:

The test statistic is t = 3.36.

Step-by-step explanation:

You're testing the claim that the mean difference is greater than 0.7.

At the null hypothesis, we test if it is 0.7 or less, that is:

H_0: \mu \leq 0.7

At the alternate hypothesis, we test if it is greater than 0.7, that is:

H_1: \mu > 0.7

The test statistic is:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.

0.7 is tested at the null hypothesis:

This means that \mu = 0.7

Survey of 35 people. From the sample, the mean difference was 0.95, with a standard deviation of 0.44.

This means that n = 35, X = 0.95, s = 0.44

Calculate the test statistic

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{0.95 - 0.7}{\frac{0.44}{\sqrt{35}}}

t = 3.36

The test statistic is t = 3.36.

7 0
3 years ago
Natalie read 14 books last year. Six of the books were nonfiction. The rest were fiction. What is the ratio of nonfiction to fic
Svetach [21]
The answer in simplified form is 3:7. Therefore the answer is B.

4 0
3 years ago
Not sure need help ​
lord [1]

Answer:

9

Step-by-step explanation:

3-2i+8=23

5+2i+23

2i=18

i=-9

3 0
2 years ago
QUICK need help right now
Mekhanik [1.2K]

Answer:

98 degrees

Step-by-step explanation:

angle kj and lm r equal

8 0
3 years ago
A density graph for all of the possible temperatures from 60 degrees to 160 degrees can be used to find which of the following?
goldenfox [79]

Answer: 90 degrees to 120 degrees

D

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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