Correlation and Introduction to Regression
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Correlation and Introduction to Regression PLEASE SHOW ALL WORKS. PLEASE CALCULATE BY HAND STEP BY STEP....
This is Correlation and Introduction to Regression ! please SHOW YOUR WORK. please don't use SPSS. all work must calculate by hand and show step by step. thanks Calculate SP (the sum of products of deviations) for the following scores. (2pts) X Y 0 4 1 1 0 5 4 1 2 1 1 3
please show work 1. Regression and Correlation An experiment was conducted to study the effect of increasing the dosage of a on sleeping time. Three readings were made at each of three dose levels certain barbiturate Sleeping Time (Hours) Dosage (11 μM/kg) 4 10 10 9 15 15 15 13 9 ΣΥ-642, ΣXY = 780 2X 84, ΣΧ2 1002, ΣΧΥ 780 ΣΥ-72, a. Plot the scatter Diagram b. Determine the Correlation Coefficient "r" and the coefficient of determination "R2n c....
hand calculation. please show all works. A researcher classifies a group of people into three age groups and measures whether each person used Facebook during the previous week (yes/no). The researcher uses a chi-square test for independence to determine if there is a significant relationship between the two variables. If the researcher obtains ?2= 6.75, then what is the correct decision for the test? Reject ?? for α = 0.05 but not for α = 0.01. Reject ?? for α...
Please show in excel regression tool step by step. The table below gives the age and bone density for five randomly selected women. Using this data, consider the equation of the regression line, y bo + bix. for predicting a woman's bone density based on her age. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice. it would not be appropriate to use the regression line to make a...
PLEASE SHOW ALL WORKS (HAND CALCULATION) NO EXCEL OR SPSS SOFTWARE. THANKS The following data summarize the results from an independent-measures study comparing three treatment conditions. (5pts) Trea tment 1 2 3 G = 120 n = 10 n = 10 n = 10 M = 1 M = 5 M = 6 ΣX² = 890 SS = 81 SS = 90 SS = 99 Using α = 0.05 determine whether there are any significant differences among the treatment means....
please show step by step work. 4. Scatter plots and calculating correlation Suppose you are given the following five pairs of scores: X Y 0 10 Create a scatter diagram of these scores in the following diagram. For each of the five Cx. v) pain, elik on the plotting embel (the black xi.e upper right corner of the tool, and drag it to the approcriate location on the grid Based on your scatter diagram, you would expect the correlation to...
1. Use the regression equation to calculate the number of Electoral votes that a state with a population of 1,000,000 would have. Since our units of population are in thousands, substitute x=1000 into the formula, find the value of y and round to the nearest whole number (since it is measuring electoral votes). Do this in Excel using what you know about Excel formulas. 2. Is this meaningful as a state population? Why or why not? 3. Discuss, briefly, what...
please show your work step by step, don't put it in writing sometime i can't read it, use excel its very important, show me the formula so i can see how u do it The following is a set of data from a sample of n = 11 items. Complete parts (a) through (c). o X Y 16 32 8 16 17 34 12 24 18 36 3 6 10 20 19 38 4 8 7 14 15 30 a....
part 1 is done need help with part 2 please Regression and Correlation Part 1 -Hypothesis test for u a) Use the data provided Perform a complete hypothesis test (show all steps) of Ho: 4 = 42 Use a -.05 Word your conclusion clearly in plain English so that a 14-year-old would understand it. For this part of the assignment, we'll look to see if there's an association between the responses of your two numerical questions PART 2 - Regression...
B-F show work please B. Calculate Pearson's r. C. Calculate the y-intercept, slope, and draw a the data in the table below to answer the six questions regression line on the scatterplot. D. Answer the “Prediction" problem. E. Calculate 12 and explain what it tells us about the relationship between the variables. Calculate the t-ratio for Pearson's r and deter- mine the level of significance. above. 1. Sociologists have discovered a phenomenon known as “environmental racism," a condition that exists...