You have 135 blueberries, you share them equally among 9 friends. How many blueberries does each person get?
Answer:
$122.9
Step-by-step explanation:
Given data
Principal= $114
Rate= 3.9%
Time= 2 years
The amount in the account is given as
A=P(1+rt)
substitute
A=114(1+0.039*2)
A=114(1+0.078)
A=114(1.078)
A=$122.9
Answer:
A) Outside both: 7
Intersection: 6
Only ET: 7
Only NDC: 10
B) 17/30
Step-by-step explanation:
Outside both: 7
Union: 30 - 7 = 23
Intersection: 13 + 16 - 23 = 6
Only ET: 13 - 6 = 7
Only NDC: 16 - 6 = 10
P(only one) = (7+10)/30
17/30
Answer: the t-test statistic is - 1.77
Step-by-step explanation:
For the null hypothesis,
H 0: μ = 2600
For the alternative hypothesis,
H a: μ ≠ 2600
This is a two tailed test
Since no population standard deviation is given, the distribution is a student's t.
Since n = 50,
Degrees of freedom, df = n - 1 = 50 - 1 = 49
t = (x - µ)/(s/√n)
Where
x = sample mean = $2450
µ = population mean = $2600
s = samples standard deviation = $600
Therefore,
t = (2450 - 2600)/(600/√50) = - 1.77
