Answer all the questions and show your work step by step (in dollars) and power

Question

Answer all the questions and show your work step by step (in dollars) and power (in cold cranking amps) of auto batteries. A test is run to determine if more expensive batteries are wer. Use the technology output given below to answer parts a) through g). Depe R-squared 41.096 s-110.2 with 19-2-17 degrees of freedom Variable CoefficientSE(Coeff) t-ratio P-value Intercept 349.166103.42 Cost 3.376 0.0036 3.435 0.0032 5.05274 1.471 -1.50 0.00 1.50 Normal Scores 500 800 25 125 Predicted Power Cost ($) Print Done

Explanation / Answer

Technology Output:
Scatter Plot : Correct answer : Option (A)

a) 19 batteries tested
b) Conditions : (A) , (B), (C), (D)

c) Correct answer: Option (C)

d)Test statistic
t = 5.05274 / 1.471 = 3.435
P-value = 0.0032

Conclustion: Correct answer: Option (B)
since P-value < alpha 0.05, we reject H0

d) Association: Correct answer: Option (A) No, the association is not strong

e) Power = 349.166 + 5.05274 Cost

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