Find the t-statistic for testing the slope.

Find the p-value for testing the slope.

Aneeka Hunt
2021-02-22
Answered

Find the slope of the regression.

Find the t-statistic for testing the slope.

Find the p-value for testing the slope.

Find the t-statistic for testing the slope.

Find the p-value for testing the slope.

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Aniqa O'Neill

Answered 2021-02-23
Author has **100** answers

The regression equation to predict cognition score is as follows:

$Cognition=102.3\u20143.34$ (Years)

The slope of the regression line is -3.34, the t-statistic for testing the slope is -2.55, and the p- value is 0.015.

The slope of the regression line is -3.34, the t-statistic for testing the slope is -2.55, and the p- value is 0.015.

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An analysis of laboratory data collected with the goal of modeling the weight (in grams) of a bacterial culture after several hours of growth produced the least squares regression line

A) 0.32 g

B) 2.08 g

C) 8.0 g

D) 67.9 g

E) 120.2 g

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MODELING REAL LIFE. You mix 0.25 cup of juice concentrate for every 2 cus of water to make 18 cups of juice. How much juice concentrate
do you use? How much water do you use?

$YouuseB\otimes \cup sofjuiceconcentrate{\textstyle \phantom{\rule{1em}{0ex}}}\text{and}{\textstyle \phantom{\rule{1em}{0ex}}}B\otimes \cup sofwater$ .

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Let $X}_{1},\dots {X}_{n$ be iid $N(\theta ,\text{}1)$ . A $95\mathrm{\%}$ confidence interval for $\theta$ is $\stackrel{\u2015}{X}\pm \frac{1.96}{\sqrt{n}}$ . Let p denote the probability that an additional independent observation, $X}_{n+1$ , will fall in this interval. Is p greater than, less than, equal to $0.95$ ? Prove your answer.

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If you were given a choice to conduct a quantitative risk analysis or a qualitative risk analysis, which option would you choose and why? How would you go about completing the risk analysis?

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Find the equation of the Least Squares Regression Line if

$\stackrel{\u2015}{x}=20$

$sx=2$

$\stackrel{\u2015}{y}=10$

$sy=4$

$r=0.2$

Pa)$\hat{y}=2+0.4x$

b)$\hat{y}=16+0.4x$

c)$\hat{y}=19-0.1x$

d)$\hat{y}=8-0.1x$

Pa)

b)

c)

d)

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The product of the ages, in years, of three (3) teenagers os 4590. None of the have the sane age. What are the ages of the teenagers?

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Given a set {-15, 1, 200, x, 1}, for what x would the mean of the set be -15?