How do I convert 7y+5x=(-15) into slope intercept form?

1 answer:

3 0

The slope intercept form is y=mx+b notice y's coefficient is 1
7y+5x=-15
subtracting 5x
7y=-5x-15
dividing by 7
y=(-5/7)x-(15/7)

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Answer:

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Step-by-step explanation:

The (1 - α)% confidence interval for population proportion P is:

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The information provided is:

x = number of students who responded as"yes" = 70

n = sample size = 200

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The formula to compute the sample proportion is:

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The R codes for the construction of the 95% confidence interval is:

> x=70

> n=200

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> s=sqrt((p*(1-p))/n)

> s

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> E=qnorm(0.975)*s

> lower=p-E

> upper=p+E

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> upper

[1] 0.4161034

Thus, the 95% confidence interval for the true proportion of university students who use laptop in class to take notes is (0.2839, 0.4161).

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