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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
Visits to Web sites. What kinds of Web sites do males aged 18 to 34 visit most often? Pornographic sites take first place, but about 50 percent of male Internet users in this age group visit an auction site such as eBay at least once a month. Inte..
The sampling distribution of the average score and Suppose x' is your average pay for the 100 weeks. Then x' has approximately
Florida State University administers a test of mathematics placement to students when they first enter the university.
To find out whether two categorical variables are independent, one should use the.
Determine the probability that person selected has blood type O? Given that person selected is a male, determine the probability that their blood type is AB?
Use the Chi-square test of independence with a .01 level of significance to determine whether appeal is independent from type.
There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval for the difference in the proportion of defectives.
Perform a chi-square test on the following data:
Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?
Illustrate by computation that, for straight -line regression of Y on x, β1= 0.
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
Do 1-sample t-test to see if people in Chicago have travelled to fewer states than people nationwide. Utilize the 10% (.10) level of significance.
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