(C) Find the sample correlation coefficient r and the coefficient of determination. (Round your answers to three decimal places.) What percentage of variation in y is explained by the least-squares model? (Round your answer to one decimal place.) (d) Test the claim that the population corelation coefficient p is positive at the 1% level of significance. (Round your test statistic to three decimal places.) Find or estimate the P-value of the test statistic. O P-value > 0.250 O 0.125 < P-value < 0.250 O 0.100 < P-value < 0.125 O 0.075 < P-value < 0.100 O 0.050 < P-value < 0.075 O 0.025 < P-value < 0.050 O 0.010 < P-value < 0.025 O 0.005 < P-value < 0.010 O 0.0005 < P-value < 0.005 O P-value < 0.0005 Conclusion O Reject the null hypothesis. There is sufficient evidence that p > 0. O Reject the null hypothesis. There is insufficient evidence that p > 0. O Fail to reject the null hypothesis. There is sufficient evidence that p > 0. O Fall to reject the null hypothesis. There is insufficient evidence that p > 0. (e) If a female baby weighs 19 pounds at 1 year, what do you predict she will weigh at 30 years of age? (Round your answer to two decimal places.) Ib

(C) Find the sample correlation coefficient r and the coefficient of determination. (Round your answers to three decimal places.) What percentage of variation in y is explained by the least-squares model? (Round your answer to one decimal place.) (d) Test the claim that the population corelation coefficient p is positive at the 1% level of significance. (Round your test statistic to three decimal places.) Find or estimate the P-value of the test statistic. O P-value > 0.250 O 0.125 < P-value < 0.250 O 0.100 < P-value < 0.125 O 0.075 < P-value < 0.100 O 0.050 < P-value < 0.075 O 0.025 < P-value < 0.050 O 0.010 < P-value < 0.025 O 0.005 < P-value < 0.010 O 0.0005 < P-value < 0.005 O P-value < 0.0005 Conclusion O Reject the null hypothesis. There is sufficient evidence that p > 0. O Reject the null hypothesis. There is insufficient evidence that p > 0. O Fail to reject the null hypothesis. There is sufficient evidence that p > 0. O Fall to reject the null hypothesis. There is insufficient evidence that p > 0. (e) If a female baby weighs 19 pounds at 1 year, what do you predict she will weigh at 30 years of age? (Round your answer to two decimal places.) Ib

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Description: HI could you fill this out for me? Modern medical practice tells us not to encourage babies to become too fat. Is there a positive correlation between the weight x of a 1-year old baby and the weight y of the matureadult (30 years old)? A random samp

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.

Topic Video

Question

HI could you fill this out for me?

Modern medical practice tells us not to encourage babies to become too fat. Is there a positive correlation between the weight x of a 1-year old baby and the weight y of the mature
adult (30 years old)? A random sample of medical files produced the following information for 14 females.
x (Ib)
y (Ib)
In this setting we have Ex = 297, Ey = 1767, Ex
22
24
21
23
20
130
15
25
21
17
24
26
22
18
19
123
128
116
120
120
145
130
130
130
130
140
110
115
6431, Ey? = 224,219, and Exy = 37,684.

(C) Find the sample correlation coefficient r and the coefficient of determination. (Round your answers to three decimal places.)
What percentage of variation in y is explained by the least-squares model? (Round your answer to one decimal place.)
%
(d) Test the claim that the population correlation coefficient p is positive at the 1% level of significance. (Round your test statistic to three decimal places.)
t =
Find or estimate the P-value of the test statistic.
O P-value > 0.250
O 0.125 < P-value < 0.250
O 0.100 < P-value < 0.125
O 0.075 < P-value < 0.100
O 0.050 < P-value < 0.075
O 0.025 < P-value < 0.050
O 0.010 < P-value < 0.025
O 0.005 < P-value < 0.010
O 0.0005 < P-value < 0.005
O P-value < 0.0005
Conclusion
O Reject the null hypothesis. There is sufficient evidence that p> 0.
O Reject the null hypothesis. There is insufficient evidence that p> 0.
O Fail to reject the null hypothesis. There is sufficient evidence that p> 0.
O Fail to reject the null hypothesis. There is insufficient evidence that p> 0.
(e) If a female baby weighs 19 pounds at 1 year, what do you predict she will weigh at 30 years of age? (Round your answer to two decimal places.)
Ib
(f) Find S.. (Round your answer to two decimal places.)
Se =
(9) Find a 95% confidence interval for weight at age 30 of a female who weighed 19 pounds at 1 year of age. (Round your answers to two decimal places.)
lower limit
Ib
upper limit
Ib
(h) Test the claim that the slope ß of the population least-squares line is positive at the 1% level of significance. (Round your test statistic to three decimal places.)
t=

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