Answer: 7/25
Step-by-step explanation: you have 7 yellow marbles and then to get your denominator you have to add up all the marbles from container a and container b and you will get 25.
7= yellow marbles
25= all the marbles in container a and b
hope this helps.
Answer:
2+6b
Step-by-step explanation:
Answer:
The original price of the parrot was $16.8
Step-by-step explanation:
Hoped this helped :)
Step-by-step explanation:
you're going to have to break the argument of the root up into smaller numbers and square root those smaller numbers to obtain the answer.
Answer:
H0 : μ = 60000
H1 : μ ≠ 60000
Test statistic = 3.464
Step-by-step explanation:
Given :
Sample mean salary, xbar = 80000
Sample standard deviation, s = 10000
Population mean salary , μ = 60000
Sample size, n = 3
Hypothesis :
H0 : μ = 60000
H1 : μ ≠ 60000
The test statistic :
T = (xbar - μ) ÷ (s/√(n))
T = (80000 - 60000) ÷ (10000/√(3))
T = 20000 / 5773.5026
T = 3.464
The Decison region :
If Tstatistic >Tcritical
Tcritical at 10%, df = 2 ; two - tailed = 2.9199
Tstatistic > Tcritical ; He
