Tag | Value |
---|---|
file | Descriptive-statistics_uva-variance-237-en_uva-variance-237-en |
name | uva-variance-237-en |
section | Descriptive statistics/Summary Statistics/Measures of Spread/Variance |
type | schoice |
solution | TRUE, FALSE, FALSE |
Type | Calculation |
Language | English |
Level | Statistical Literacy |
IRT-Difficulty | 3.661 |
p-value | 0.1774 |
In two random samples from a normally distributed population (n1 = 10 and n2 = 30) one finds S12 = 50 and S22 = 40. A weighted estimate of the population variance σ2 then has the value