If we have 42 participants and find a correlation coefficient of .276, which of the following...

If we have 42 participants and find a correlation coefficient of .276, which of the following is the correct interpretation?

A.) The r obtained value exceeds the critical value at the p < .05 level but not the p < .01 level

B.) The r obtained value exceeds the critical value at the p < .05 level and the p < .01 level

C.) The r obtained value does not exceed either the critical value at the p < .05 level or the p < .01 level

D.) The r obtained value exceeds the critical value at the p < .01 level but not the p < .05 level None of the above

Expert Solution

orchestra answered 2 years ago

Let X and Y have the joint distribution shown in the table. Find the correlation coefficient....

Let X and Y have the joint distribution shown in the table. Find the correlation coefficient. (round to 4 decimal digits) p(x,y) x/y 1 2 3 1 0.12 0.08 0.11 2 0.18 0.14 0.07 3 0.17 0.05 0.08

Do all hypothesis testing steps and find the correlation coefficient for the following data to determine...

Do all hypothesis testing steps and find the correlation coefficient for the following data to determine if there is a significant correlation between the results of IQ test and Test A scores. (A higher score on either tests = a “better” score”) A.Also make a scatterplot (by hand) for this data. (IQ is X and Test Score is Y, also begin at 90 for X and 30 for Y) B.Calculate the regression equation for predicting scores on the Y’(Reading test)...

Find the correlation coefficient and report it accurate to three decimal places.

Here is a bivariate data set. x y 77.2 35 84 32.8 68.1 34.9 81 27.8 91.3 25.6 79.9 30.1 80.9 30 90.3 27.1 69.3 29.3 73.3 34.3 86 31 Find the correlation coefficient and report it accurate to three decimal places. r =

What is wrong with the following definition of the correlation coefficient?

What is wrong with the following definition of the correlation coefficient? The correlation coefficient measures the strength and direction of the linear relationship between two variables Choose the correct answer below A. The correlation coefficient is a measure that describes the direction of the relationship, but the strength of the relationship cannot be determined from the B. The relationship between the two variables does not have to be linear to use the correlation coefficient C. The correlation coefficient is a measure that describes the strength...

Construct a scatterplot, find the value of the linear correlation coefficient r, find the critical value...

Construct a scatterplot, find the value of the linear correlation coefficient r, find the critical value of r from Table A-6 by using a 0.05, and determine whether there is a linear correlation between the two variables. Song Audiences and Sales The table below lists the numbers of audience impressions (in hundreds of millions) listening to songs and the corresponding numbers of albums sold (in hundreds of thousands). The number of audience impressions is a count of the number of...

A) Running a regression on 11 pairs of data, you find the correlation coefficient to be...

A) Running a regression on 11 pairs of data, you find the correlation coefficient to be 0.321. At the .05 significance level, does this show significant correlation? Yes, significant correlation No B) At a .01 significance level with a sample size of 50, find the critical value for the correlation coefficient

Find the correlation coefficient r for the given table below and use it to determine if...

Find the correlation coefficient r for the given table below and use it to determine if there is a Strong Negative or Strong Positive or Weak Negative or Weak Positive correlation. (Check your spelling!) Redshift | 0.0233 |0.0539 | 0.0718 | 0.0395 | 0.0438 | 0.0103 =Distance| 0.32 | 0.75 | 1.00 | 0.55 | 0.61 | 0.14

How do we decide if the correlation coefficient is close enough to ±±1 to declare that...

How do we decide if the correlation coefficient is close enough to ±±1 to declare that there is correlation? [2 sentences] How can you find the correct value of the correlation coefficient from the coefficient of determination? [2 sentences] What is the problem with using a regression equation to predict what will happen in the distant future? Provide a specific example and show how this could cause problems. [3 sentences]

Use a calculator to create a scattergram and give the keystrokes. Find the correlation coefficient give...

Use a calculator to create a scattergram and give the keystrokes. Find the correlation coefficient give the formula, using a calculator. Give the calculator keystrokes used when finding the equation and the correlation coefficient. The following is about data on disk drives. Capacity (In TB) Price (in $) 0.50 59.99 1.0 79.99 2.0 111.97 3.0 109.99 4.0 149.99 6.0 423.34 8.0 596.11 12.0 1079.99 32.0 4461.00 a) Sketch the scattergram. b) Write down the equation that predicts Price from Capacity....

1) Find the correlation coefficient r for the given table below and use it to determine...

1) Find the correlation coefficient r for the given table below and use it to determine if there is a Strong Negative or Strong Positive or Weak Negative or Weak Positive correlation. (Check your spelling!) PSAT 183 207 167 206 197 142 193 176 SAT 2200 2040 1890 2380 12290 2070 2370 1980 2) Find the correlation coefficient r for the given table below. (Round to the nearest thousandth) (ONLY TYPE IN THE NUMBER!) x 10 8 13 9 11...

Question