Let X1,X2,…,X20 be a random sample from a N(mu,sigma^2) population. Suppose P=frac110sumi=1^10Xiquadandquad Q=frac19sumi=1^10(Xi-P)^2. Then which of the following statements is/are correct?

Q36Section B (Section B)36 of 60

t and F pivots from a normal sample

Let $X_1,X_2,…,X_{20}$ be a random sample from a $N(\mu,\sigma^2)$ population. Suppose $P=\frac1{10}\sum_{i=1}^{10}X_i\quad\text{and}\quad Q=\frac19\sum_{i=1}^{10}(X_i-P)^2.$ Then which of the following statements is/are correct?

Multiple select: one or more options are correct. Select all of them, then submit — marks need the exact set.

Select every correct option, then submit.

Keyboard: A–D answer · S solution · ←/→ previous/next