Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11,12,15. There are 10,000 total students. Average GPA: Unknown, Standard Deviation of GPA: 0.02 and it’s Normal. A) Find the mean and standard deviation for GPA. B) Calculate a 95% confidence interval for the populations mean GPA. C) Use Correlation formula to find r between GPA and Age.

Identify the linear correlation coefficient r , test statistics and pvalue. thank you

Define the term relationship as a perfect positive cross-correlation?

Values 2- -2 Group 1 Data Set 1 Example Data by Groups Group 2 Group 3 Values 20- 10- -10- Group 1 Data Set 2 Example Data by Groups Group 2 Group 3

estion 3 of 38 university and gathers their freshman year GPA data and the high school SAI score reported on each of their college applications. He produces a scatterplot with SAT scores on the horizontal axis and GPA on the vertical axis. The data has a linear correlation coefficient of 0.506701. Additional sample statistics are summarized in the table below. Variable Sample Sample standard Variable description mean deviation high school SAT score x 1504.291401 Sx = 105.782904 %3D y freshman year GPA y = 3.240805 Sy = 0.441205 r = 0.506701 slope 0.002113 Determine the y-intercept, a, of the least-squares regression line for this data. Give your answer precise to at least four decimal places. tems of use Thelp about us குசங் careers 2:30 PM 10/24/20 o耳 国 @ hp

Please help me figure this out. Thank you :)

The weight of male athletes is normally distributed with a mean of 95 kg and astandard deviation of 7 kg. If 68% of athletes satisfy a maximum weight requirementfor contest, find the maximum weight requirement.

If the coefficient of determination is 0.5625 then calculate the correlation coeffcien

Suppose the scatter diagram of a random sample of data pairs (x,y) shows no linear relationship between x and y. Do you expect the value of the sample correlation coefficient r to be close to 1, -1,or 0?

Spearman ho is used when relationship between variables is being determined, assuming data is non-normal. True or False?