Answer:
x=55 y=70
Step-by-step explanation:
Answer:
Step-by-step explanation:
We want to simplify;
We can rewrite to get;
We multiply the first fraction by the multiplicative inverse of the second fraction to get;
This gives us;
Simplify to get;
Multiply;
Answer:
a)= 2
b) 6.324
c) P= 0.1217
Step-by-step explanation:
a) The mean of the sampling distribution of X`1- X`2 denoted by ux`-x` = u1-u2 is equal to the difference between population means i.e = 2 ( given in the question)
b) The standard deviation of the sampling distribution of X`1- X`2 ( standard error of X`1- X`2) denoted by σ_X`1- X`2 is given by
σ_X`1- X`2 = √σ²/n1 +σ²/n2
Var ( X`1- X`2) = Var X`1 + Var X`2 = σ²/n1 +σ²/n2
so
σ_X`1- X`2 =√20 +20 = 6.324
if the populations are normal the sampling distribution X`1- X`2 , regardless of sample sizes , will be normal with mean u1-u2 and variance σ²/n1 +σ²/n2.
Where as Z is normally distributed with mean zero and unit variance.
If we take X`1- X`2= 0 and u1-u2= 2 and standard deviation of the sampling distribution = 6.324 then
Z= 0-2/ 6.342= -0.31625
P(-0.31625<z<0)= 0.1217
The probability would be 0.1217
Answer:
A: $656 B: $24.6 per hour, $172.2 total overtime pay. C: $828.2
Step-by-step explanation:
A: multiply 16.4 times 40
B: <u>16.4 / 2 = 8.2</u> <u>8.2 + 16.4 = 24.6. </u> <u>24.6 times 7 is 172.2</u>
C: Add overtime pay and regular pay to get total gross pay.
Answer:
36.99 You just add them together.
Step-by-step explanation:
Hope this helps! Good luck on your assignment! Brainly if so!
