Q1)
Find the curve of second degree of regression of y on x () to the following data by method of least square :
| x | 1 | 2 | 3 | 4 |
| y | 6 | 11 | 18 | 27 |
Q2) Explain the concept of confidence interval with suitable example.
Q3) Fit a least square linear approximation Y=a+bX for the data X: -1, 0, 1, 2, 3 and Y: 0, 1, 2 , 9, 29
Q4) A random sample of 900 member has a mean 3.4cms. Can it be reasonably regarded as a sample from a large population of mean 3.2cms and S.D. 2.3cms??
Q1)Find the curve of second degree of regression of y on x (
) to the following data by method of least square :
Answer: Click here for answer –> curve of regrresion
Q2) Explain the concept of confidence interval with suitable example.
Answer: click here to download answer—-> confidence interval
Q3) Fit a least square linear approximation Y=a+bX for the data X: -1, 0, 1, 2, 3 and Y: 0, 1, 2 , 9, 29
Answer: Follow the below link
Q4) A random sample of 900 member has a mean 3.4cms. Can it be reasonably regarded as a sample from a large population of mean 3.2cms and S.D. 2.3cms??
Answer: Follow the below link