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Soloha48 [4]
2 years ago
15

What is an equivalent ratio to 5/6

Mathematics
1 answer:
Evgen [1.6K]2 years ago
8 0
Just times everything by something
examples
 10/12
20/24
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A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain us
amm1812

Answer:

Given:

Sham: n= 20,     x=0.44,   s=1.24,

Magnet:n= 20,  x =0.49,   s= 0.95

For Sham:

Sample size, n = 20

Sample mean = 0.44

Standard deviation = 1.24

For Magnet:

Sample size = 20

Sample mean = 0.49

Standard deviation = 0.95

The null and alternative hypotheses:

H0: s1²=s2²

H1: s1² ≠ s2²

a) To find the test statistics, use the formula:

\frac{s1^2}{s2^2}

\frac{1.24^2}{0.95^2} = \frac{1.5376}{0.9025} = 1.7037

Test statistics = 1.7037

b) P-value:

Sham: degrees of freedom = n - 1 = 20 - 1 = 19

Magnet: degrees of freedom = n - 1 = 20 - 1 = 19

The critical values:

[Za/2, df1, df2)], [(1 - Za/2), df1, df2]

f[0.05/2, 19, 19], f[(1 - 0.05/2), 19, 19]

f[0.025, 19, 19], f[0.975, 19, 19]

(2.526, 0.3958)

The rejection region:

Reject H0, if  F < 0.3958 or if F > 2.526

c) Conclusion:

Since the critical values of test statistic is between (0.3958 < 1.7037 < 2.526), we fail to reject null hypothesis H0.

There is insufficient evidence to to support the claim that those given a sham treatment have reductions that vary more than those treated with magnets

3 0
2 years ago
Look at picture .. pls !!
sveticcg [70]

Answer:

A

Step-by-step explanation:

5 0
1 year ago
John needs to find out the probability that he will sell all his cars by the end of the
Nezavi [6.7K]

Answer:

c) 100

Step-by-step explanation:

This is the best choice because the number is not too low or too high. He will get an accurate probability.

5 0
3 years ago
Complete the proof....​
mart [117]

Answer:

2d, 3b

Step-by-step explanation:

pay attention in class

these are simple theorems

i wish you all the best

if you want, i can explain them to you

5 0
2 years ago
-
Anni [7]
The midpoint is a point the divided a line into two equal parts
So +1 is the midpoint
4 0
3 years ago
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