Suppose we are testing the null hypothesis h0: μ = 20 and the alternative ha: μ 20, for a normal population with σ = 5. a random sample of 25 observations are drawn from the population, and we find the sample mean of these observations is = 17.6. the p-value is closest to:

0.0668.
0.0082.
0.0164.
0.1336.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

529 and 531

step-by-step explanation: