On the basis of observations made on 39 cotton plants, the total correlation of yield of cotton (X,), number of bolls, i.e., seed vessels (X2) and height (X3) are found to be: r12 = 0.8, r13 = 0.65 and r23=0.7 Comment on the partial correlation between yield of cotton and the number of bolls, eliminating the effect of height.
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- Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.01. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals?For a data set of brain volumes (cm^3) and IQ scores of eight males, the linear correlation coefficient is r= 0.848. Use the table available below to find the criticle values of r. Based on comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation?For a data set of brain volumes (cm3) and IQ scores of seven males, the linear correlation coefficient is r=0.807. Use the table available below to find the critical values of r. Based on a comparison of the linear correlation coefficient r and the critical values, what do you conclude about a linear correlation?
- The age in months and the height in inches of a young child are known to have a strong positive association. What is most likely to be the correlation, r, between these two variables?Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.01. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.1 7.6 9.7 9.4 8.8 8.2 Weight 111 198 246 204 202 185 Construct a scatterplot. Choose the correct graph below. (inserted as picture) The linear correlation coefficient is r=__________ (Round to three decimal places as needed.) The critical values are r= (_______,________) (Round to three decimal places as needed. Use a comma to separate answers as needed.) Because the absolute value of the linear correlation coefficient is (greater,less than, equal to) than the positive…Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using alpha equals 0.05. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of theseals? Overhead Width 7.1 7.6 9.7 9.3 8.6 8.2 Weight 115 197 243 198 197 186
- Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.01. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.1 7.7 9.7 9.4 8.7 8.3 Weight 111 201 242 204 197 192 Construct a scatterplot. Choose the correct graph below. The linear correlation coefficient is r=enter your response here. (Round to three decimal places as needed.) The critical values are r=enter your response here. (Round to three decimal places as needed. Use a comma to separate answers as needed.)Find Rs using spearman rank correlation coefficientThe store manager of a business that sells jackets is curious if the weather temperature (in degrees Celsius) per day is related to the daily sales (in pesos) earned by the store. He took some random samples and recorded the temperatures and sales for the selected days, which can be found in the next slide. Calculate the correlation coefficient and interpret the result.
- Determine the critical values of r and if it represents a significant linear correlation.Which of the scatter diagrams below suggests a strong positive linear relationship between the x and y variables?Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in kg) of the seals. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the critical values of r using α=0.05. Is there sufficient evidence to conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals? Overhead Width 7.1 7.7 9.8 9.2 8.7 8.3 Weight 112 204 245 194 198 187 1. Construct a scatterplot graph 2. The linear correlation coefficient r is 3. The critical values are r= 4. Because the absolute value of the linear correlation coefficient is_____than the positive critical value, there___sufficient evidence to support the claim that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals for a significance level of α=0.05.