Comparison of mean reading test scores by ethnic background (Caucasian, African American, Hispanic, & Asian). A. T-test dependent samples B. One-way ANOVA C. Correlation D. Chi square E. Simple Regression
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Comparison of mean reading test scores by ethnic background (Caucasian, African American, Hispanic, & Asian).
A. T-test dependent samples
B. One-way ANOVA
C.
D. Chi square
E. Simple Regression
Step by step
Solved in 2 steps
- it keeps ssy f test and p vale are not rightStatistics students in Oxnard College sampled 11 textbooks in the Condor bookstore, and recorded the number of pages in each textbook and its cost. The bivariate data is shown below, Number of Pages (xx) Cost(yy) 376 53.84 376 45.84 463 49.67 731 91.79 927 91.43 328 54.52 877 104.93 874 90.66 462 63.58 390 47.1 565 64.85 A student calculates a linear modelyy = xx + . (Please show your answers to two decimal places)Use the model above to estimate the cost when number of pages is 639Cost = $ (Please show your answer to 2 decimal places.)A market researcher is trying to determine whether males differ from females with regard to the following question: Do you drink soft drinks? Which of the following tests would be most appropriate? Chi-square test 1-way ANOVA test Correlation analysis Median test Miller-Budweiser test
- You'd like to test if coffee consumption (coffee drinkers, non-drinkers) affects differences in heart attack risk one year later (heart attack, no heart attack). One Sample Z test One Sample t test Two Sample Z test Independent two Sample t test Paired t test One-way ANOVA Chi Square test O Pearson's Correlation CoefficientUse your knowledge about ANOVA tables and adjusted R-squared values to answer this question: As the sample size goes up, the average amount of variability explained (non-adjusted R-squared value) by a random (zero true predictive power) explanatory variable in regression: Group of answer choices goes down stays the same goes upStatistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 970 120.7 537 79.07 686 97.46 581 86.91 752 89.72 867 121.37 903 110.33 555 79.05 572 80.92 780 92.8 599 74.89 A student calculates a linear modelyy = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 569.Cost = $ (Please show your answer to 2 decimal places.)
- If P(A) = 0.52, P(B) = 0.45 and P(A u B) = 0.76, then P(B | A) = (Enter a number between 0 and 1, using two decimal points)Sharon wants to measure the effect of training and high/low protein diet on muscle recovery after exercise. There are 4 groups of participants: trained high protein diet, untrained low protein diet, trained low protein diet, untrained high protein diet. What statistical test should be used to determine the mean differences between groups in muscle recovery? 2-way/factorial ANOVA 1-way ANOVA Repeated Measures ANOVA Chi-square TestUsing a .01 level of significance, determine whether these samples of women and men have significantly different levels of safety knowledge Men Women 4 7 6 5 7 6 3 7 What is the null and alternative hypothesis what is the critical region what is the test statistic Reject null hypothesis? what can be concluded
- Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 827 126.78 864 135.96 492 93.88 436 72.04 622 94.08 694 112.16 747 114.58 806 131.84 952 152.28 733 118.62 384 59.76 A student calculates a linear modelyy = ______x +________ . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 638.Cost = $ _____________(Please show your answer to 2 decimal places.)What effect does standardizing into z-scores have on the center (mean) of a variable?Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 957 148.98 624 100.36 869 137.66 281 40.34 259 39.26 579 82.06 309 52.26 485 83.9 797 113.58 338 54.32 911 138.54 A student calculates a linear modelyy = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 200.Cost = $ (Please show your answer to 2 decimal places.)
