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3 years ago

Marissa got an 85% on her math quiz. If she got 34 questions correct, know how many questions were on the quiz.

Mathematics

2 answers:

ikadub [295]3 years ago

8 0

<u>Answer:</u> 40

<u>Reasoning:</u> 34/.85= 40

40x.85=34

worty [1.4K]3 years ago

6 0

Let q represent the total number of questions on the quiz. Then 0.85q = 34, and q = 34/0.85 = 40. There were 40 questions on the quiz.

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Step-by-step explanation:

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So you have 2 independent populations, SUV's equipped with tires made using compound 1 and SUV's equipped with tires made using compound 2.

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$Z= \frac{(X[bar]_1-X[bar]_2)-(Mu_1-Mu_2)}{\sqrt{\frac{S^2_1}{n_1} +\frac{S^2_2}{n_2} } }$

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Since the statistic value is greater than the critical value, the decision is to not reject the null hypothesis.

At a 5% significance level, you can conclude that the average braking distance of SUV's equipped with tires manufactured used compound 1 is greater than the average braking distance of SUV's equipped with tires manufactured used compound 2.

I hope you have a SUPER day!

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