3. A study was done using a random sample of n = 25 expectant mothers to see if an experimental supplemental diet for the mothers will increase birth weights on average. The average birth weight
of
the n=25 babies whose mothers participated in the study was a = 8 pounds. Find the probability
that the sample mean has a value of 8 or greater.

answer: x

step-by-step explanation:

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

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