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) _

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead