You sample with size N from a normal population and want to test 0: = 12 vs. 1: does not equal 12 .What is the P-value of the test if a) X bar= 12.623 , s = 1.25 , and N = 25.
b) X bar= 12.5, s= 1.25, and N=36.
c) X bar= 12.6,N=25, and sigma is known to be 1.25
Answers: (a) _ (b) _

x + 4/7

step-by-step explanation:

use cymath

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative