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Thepotemich [5.8K]
3 years ago
6

What is 2x-3=4(x-5)? And also what is 2x squared=50?

Mathematics
1 answer:
Ierofanga [76]3 years ago
6 0
2x - 3 = 4(x - 5)
2x - 3 = 4x - 20
4x - 2x = 20 - 3
2x = 17
x = 8 1/2

2x² = 50
x² = 25
x = \pm√25
x = \pm5


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The <em>p</em>-value of the test statistic is < 0.05.

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Since <em>p</em> < 0.05 the null hypothesis is rejected concluding that there is a significant difference between the amount of time spent on social networking sites by parents and children.

(d)

The estimated value of Cohen's d is, <em>d</em> = 0.49.

A Cohen's d value between the range 0.50 to 0.80 is considered as medium.

Thus, the effect size of the test is medium.

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