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Using t test for significance of slope to determine whether the independent variable is a significant predictor of the dependent variable.
Consider the simple linear regression of Y, average total sleep time per 24 hour period (ASTD) on X, age of the young child (AGE). Do not use a regression program, rather run the calculations yourself on your calculator or using an Excel spreadsheet or equivalent and determine the regression parameters and the ANOVA table applicable to the following data and then answer the following parts to question 3 and select your answers from the following choices on the test document in Blackboard..
ATST(Y) AGE(X)
566.00 4.40
461.75 14.00
491.10 10.10
565.00 6.70
462.00 11.50
532.10 9.60
477.60 12.40
515.20 8.90
493.00 11.10
528.30 7.75
575.90 5.50
532.00 8.60
530.50 7.20
What is the sum of the least squares slope and intercept parameter?
a) 475.56
b) 517.44
c) 648.78
d) 591.85
e) 622.72
Create a frequency table for the total number of people that prefer each type of music:
If die is loaded so that 6 comes up with probability 0.2 and probabilities of 2,3,4, and 5 faces are not affected, determine the assignment of probabilities to the six faces?
What is the probability that a respondent said neither the Big Ten nor the Pac-10 would have a team in the Rose Bowl?
What is the probability of flipping a coin 6 times and getting 4 or more heads?
At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? State your hypotheses and decision rule.
What is the value of the population mean? What is the best estimate of this value?
There are 6 children in a family. The number of children defines a population. The number of simple random samples of size 2 that are possible equals:
Why is it misleading to draw the conclusion from the test above that long-time exposure to cadmium reduces the vital capacity?
Determine the percent of the days is the price between $38.00 and $40.00?
How large a sample should be taken if the desired margin of error is?
The American Automobile Association checks the prices of gasoline before many holiday weekends.
What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?
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