Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of137 to 193 cm and weights of 40 to 150 kg. Let the predictor variable x be the first variable given. The 100paired measurements yield x = 168.23 cm, y = 81.56 kg, r=0.408, P-value = 0.000, and ŷ = -105 +1.04x. Findthe best predicted value of ŷ (weight) given an adult male who is 161 cm tall. Use a 0.05 significance level.The best predicted value of y for an adult male who is 161 cm tall is(Round to two decimal places as needed.)kg.

To find : The best predicted value of y for an adult male who is 161cm tall .

Answered: Heights (cm) and weights (kg) are…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 94E

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Consider the model y=-2.45x+7.18 derived from data between x=4 and x=10. What value of x represents interpolation of the data?
A photoconductor film is manufactured at a nominal thickness of 25 mils. The product engineer wishes to increase the mean speed of the film and believes that this can be achieved by reducing the thickness of the film to 20 mils. Eight samples of each film thickness are manufactured in a pilot production process, and the film speed (in microjoules per square inch) is measured. For the 25-mil film, the sample data result is.x₁ = 1.15 and S₁ = 0.11, while for the 20-mil film, the data yield 2 = 1.06 and s2 = 0.09. Note that an increase in film speed would lower the value of the observation in microjoules per square inch. Do the data support the claim that reducing the film thickness increases the mean speed of the film? Use a = 0.10 and assume that the two population variances are equal and the underlying population of film speed is normally distributed. The appropriate decision for the test is to reject the null hypothesis True False
A photoconductor film is manufactured at a nominal thickness of 25 mils. The product engineer wishes to increase the mean speed of the film, and believes that this can be achieved by reducing the thickness of the film to 20 mils. Eight samples of each film thickness are manufactured in a pilot production process, and the film speed (in microjoules per square inch) is measured. For the 25-mil film, the sample data result is = 1.15 and 81 = 0.11, while for the 20-mil film, the data yield 2 = 1.06 and 82 = 0.09. Note that an increase in film speed vould lower the value of the observation in microjoules per square inch. (a) Do the data support the claim that reducing the film thickness increases the mean speed of the film? Use a = 0.10 and assume that the two population variances are equal and the underlying population of film speed is normally distributed. What is the P-value for this test? Round your answer to three decimal places (e.g. 98.765). The data the claim that reducing the film…
An English teacher was interested in studying the words of Macbeth. She took a random Sample of 300 words and wrote down the length of each word. She found out the average length of the words is 3.4 letters. What would be the parameter? Number of words in the sample? All words in the play? Average number of letter per words in the entire Macbeth? 3.4?

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