Mathematics, 11.05.2021 17:10 sheldavis
An automobile dealer conducted a test to determine whether the time needed to complete a minor engine tune-up depends on whether a computerized engine analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in the experiment. The data (time in minutes) obtained follow.
Car
Compact Intermediate Full Size
Analyzer Computerized 50 55 63
Electronic 42 44 46
The following regression model can be used to analyze the data for a randomized block design involving two treatments and three blocks.
E(y) = 0 + 1 x 1 + 2 x 2 + 3 x 3
a. Show the values of the variables below. If your answer is "zero" enter "0".
Analyzer x 1
Computerized ?
Electronic 1
Car x 2 x 3
Compact 0 0
Intermediate 1 ?
Full Size 0 ?
b. Enter negative values as negative number.
Show the estimated regression equation (to 1 decimal, if necessary).
y = + x 1 + x 2 + x 3
c. What is the value of the t test statistic for the type of analyzer (to 2 decimals)? Use α = .05 to test for any significant differences.
d. What is the p-value?
Select {less than .01, between .01 and .025, between .025 and .05, between .05 and .10, greater than .10,}I
What is your conclusion?
Select {Conclude that the mean time is different for the two types of analyzers, Cannot conclude that the type of analyzer has a significant effect on the mean time}
Answers: 3
Mathematics, 22.06.2019 00:00, crazylogic963
Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?
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Mathematics, 22.06.2019 00:30, skittles181927
Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.
Answers: 1
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