Answer:
Step-by-step explanation:
Data given and notation
represent the sample mean
represent the sample standard deviation for the sample
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
t would represent the statistic (variable of interest)
represent the p value for the test (variable of interest)
State the null and alternative hypotheses.
We need to conduct a hypothesis in order to check if the mean weight is less than 4 ounces, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:
(1)
t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".
Calculate the statistic
We can replace in formula (1) the info given like this:
262-b=184 this will be your answer to the problem
It wants you to multiply the positive integers that come before it.
5! = 5 * 4 * 3 * 2 * 1
4! = 4 * 3 * 2 * 1
5!4! = 5 * 4 * 3 * 2 * 1 * 4 * 3 * 2 * 1 = 2880
Answer:
One solution (-1,2)
Step-by-step explanation:
Since these two linear equations have different slopes, different y-intercepts, and are indeed linear, these equations will only have one crossing when graphed, and hence one solution.
To find that solution, we can simply set the equations equal to each other.
y = -x + 1
y = 2x + 4
-x + 1 = 2x + 4
-3 = 3x
-1 = x
Now plug that value back into one of the equations:
y = -x + 1
y = -(-1) + 1
y = 2
So now you know the crossing for these two equations occurs at (-1,2).
Cheers.
Answer: I cannot see the answer choices, so there is nothing to go by to answer this question.
Step-by-step explanation:
What I can tell you is that a line being parallel to another line would look like this: \\.
Two lines close to each other and that look identical are parallel.
Parallel lines never intersect each other, for that would make them perpendicular to each other.
In equation form, two lines can be found parallel to each other if they have the same slope. Often times they differ in y-intercepts, but they are still parallel.
