First you have to find the cost of each jacket.
54/9=6 Each jacket cost $6
Then you get the total profit and divide that by the cost of each jacket.
270/6=45 (45 jackets)
Multiply 45 jackets by the cost ($6)
45*6=$270.
The answer is 45.
Answer:
a
The null hypothesis is
The alternative hypothesis is
b

c
The decision rule is
Reject the null hypothesis
d
The conclusion is
There is no sufficient evidence to conclude that the variance of the immune response is equal to 1.9.
Step-by-step explanation:
From the question we are are told that
The variance is
The sample size is n = 30
The sample variance is
The level of significance is
The null hypothesis is
The alternative hypothesis is
Generally the test statistics is mathematically represented as

=> 
=> 
Generally from the degree of freedom is mathematically represented as

=> 
=> 
Generally from the chi distribution table the critical value of
at a degree of freedom of
is

=> 
Gnerally from the values obtained we see that
hence
The decision rule is
Reject the null hypothesis
The conclusion is
There is no sufficient evidence to conclude that the variance of the immune response is equal to 1.9.
Answer:
24
Step-by-step explanation:
3/8 of the 64 total animals at the zoo are birds.
To solve, this, multiply 3/8 and 64
3/8*64=24
Another way to solve would be to make a proportion
3/8=x/64
Multiply both sides by 64 to get x by itself
64(3/8)=(x/64)64
24=x
So, 24 out of the 64 animals are birds
Answer:
y=7
Step-by-step explanation:
When ever the slope is 0, the line is completely flat. This means that the equation has the same y for every point.
The y on the point given is 7, therefore the answer is y=7.