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seropon [69]
3 years ago
13

Some people believe that second born subjects are more intelligent (higher IQ test). Given the data, your job is to perform the

appropriate statistical test or procedure and help them decide.
What test did you perform?

a. Regression
b. ​​Multiple regression
c. One-sided t-test
d. ​​Two-sided t-test
Mathematics
1 answer:
nexus9112 [7]3 years ago
6 0

Answer:

C

Step-by-step explanation:

When to use regression test?

  • This is done to find the relationship between 2 variables. One dependent and one independent.

When to use Multiple regression test?

  • Extension of regression test. It is used to predict value of 1 variable when it depends on 2-3 other variables. Multivariable, basically.

When to use 1-sided t-test?

  • We check for possibility of relationship of something from one side. 1 side effect. With a hypothesis and its alternate.

When to use 2-sided t-test?

  • This is same as 1-tailed but it looks for possibility from 2sides. A hypothesis and alternate, whether less or more.

Now, Options A and B are not right since we aren't comparing 2 variables here. People believe second born subjects are more intelligent. We have to perform a test to see whether this is true or not. One sided answer. So, we will use One-sided t-test.

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19;30

Step-by-step explanation:

Adding them together is the total

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Toni can carry up to 11 lb in her backpack. Her lunch weighs 1 lb, her gym clothes weigh 2 lb, and her books (b) weigh 2 lb each
yuradex [85]
4 books

2(her gym clothes)+1(her lunch)=3
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\frac{4x + 40}{-y +8}

Step-by-step explanation:

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What percent represents the part of the model shaded green. A.60% B.62.5%. C.66.7% D.75%
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Step-by-step explanation:

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A ball thrown straight up in the air travels 90 inches in the first tenth of a second. In the next tenth of a second the ball tr
Tcecarenko [31]

Answer:

855

Step-by-step explanation:

1.9 seconds is 19 tenths, so that means we add using the information given, which is that the ball travels 5 fewer inches every tenth of a second:

Time | Inches traveled

0.1     | 90

0.2    | 85

0.3    | 80

0.4    | 75

0.5    | 70

0.6    | 65

0.7    | 60

0.8    | 55

0.9    | 50

1.0     | 45

1.1      | 40

1.2     | 35

1.3     | 30

1.4     | 25

1.5     | 20

1.6     | 15

1.7     | 10

1.8     | 5

1.9     | 0

90+85+80+75+70+65+60+55+50+45+40+35+30+25+20+15+10+5+0=855

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