687.09 dollars happy now
step-by-step explanation: 6870
1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09
The mentioned statement is not true because the F sampling distribution is used for variance estimator in the Analysis of the variance. The Analysis of variance technique used to compare two different variance estimate to check the equality of population mean. The chi-square statistic involve the comparison of variance with specified variance whereas F-statistic is calculated by taking the ratio of two variances.