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qaws [65]
2 years ago
13

Please help!!!

Mathematics
1 answer:
abruzzese [7]2 years ago
4 0
1)51 2)91 3)79 :)))))0
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Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take
Ipatiy [6.2K]

Answer:

a) r = 0.974

b) Critical value = 0.602

Step-by-step explanation:

Given - Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both test and the results are give below

Test A | 64 48 51 59 60 43 41 42 35 50 45

Test B |  91 68 80 92 91 67 65 67 56 78 71

To find - (a) What is the value of the linear coefficient r ?

             (b) Assuming a 0.05 level of significance, what is the critical value ?

Proof -

A)

r = 0.974

B)

Critical Values for the Correlation Coefficient

n       alpha = .05          alpha = .01

4           0.95                       0.99

5           0.878                     0.959

6           0.811                       0.917

7           0.754                      0.875

8           0.707                      0.834

9           0.666                      0.798

10          0.632                      0.765

11           0.602                      0.735

12          0.576                       0.708

13          0.553                       0.684

14           0.532                       0.661

So,

Critical r = 0.602 for n = 11 and alpha = 0.05

6 0
2 years ago
Why is the rise the value for the numerator and the run the value for the denominator?
julsineya [31]
Because change in y for the rise is if it goes up or down and change in x for the run to see if it goes left or right
3 0
3 years ago
I feel like it is add x but i am bad at math
skelet666 [1.2K]
Add 3x is the right answer
5 0
3 years ago
Read 2 more answers
What is 35% of 500?<br> Help please
Hatshy [7]

Answer:

175

Step-by-step explanation:

500 times 35/100

simplify

8 0
3 years ago
Read 2 more answers
Which inequality represents the situation? The cost of the ticket is no more than $50.
Minchanka [31]

Answer:

1. ≤ 50

2. ≥ 200

Step-by-step explanation:

7 0
3 years ago
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