Answer:
Test: 
< 20 with normal distⁿ
Hypothesis test:
H0: 
20 (Null Hypothesis, H₀ : = 20 is also correct)
H1: < 20 (Alternative Hypothesis, also called H₁)
This is lower tailed test.
Since sample is large, sample standard deviation can be taken as an approximation of population standard deviation.
x = 19.3
= 11.1
n = 444
significance level, 
= 0.05 (If no value is given, we take level of 0.05)
Test statistic 
= - 1.33
The attached files contains additional information
Answer:
B
Step-by-step explanation:
B because if it's 1000 then the number will be greater then the fraction.
Answer:
0.2638,0.5902,0.1250,0.5902
Step-by-step explanation:
Given that in a certain state, 32.2% of all community college students belong to ethnic minorities.
i.e. probability for any random college student to belong to ethnic minorities
=0.322
This is constant as each student is independent of the other
X no of college students belong to ethnic minorities in the sample of 10 is
Bin (10, 0.322)
a) Exactly 3 belong to an ethnic minority.
b. Three or fewer belong to an ethnic minority.
=
c. Exactly 5 do not belong to an ethnic minority.
d. Six or more do not belong to an ethnic minority.
Answer:
Step-by-step explanation:
A(t) denotes the amount of oil in the barrel at time t.
As the amount of oil is decreasing at a rate proportional to the product of the time elapsed and the amount of oil present in the barrel,
Here, k is a constant term.
As a 100-gallon barrel initially contains half-full of oil,
Sense we are dealing with 16 we must put each number over sixteen. 0= 0/16
1 = 16/16 and 1/2 = 8/16. 8/16 is only 1/16 away from 9/16, therefore our answer is 1/2
