1. x=85
2. x=19
These are the answers, happy holidays :)
Answer:300
Step-by-step explanation:25 cents each quarter so the equation would be 12 times 25.
Answer:
Dude
the twice of ML is equal to JL....
Now u may ask how can I say this the reason is I used "THE MIDPOINT FORMULAE" do search this concept on utube........
2(5x-16) = 4x+34
So here x is 11
Put the value of it in JL.... so JL is 4*11+34 = 78 units......
Answer:
Not reasonable.
Step-by-step explanation:
Hello!
You have two samples from normally distributed variables. Let's say:
Sample 1
X[bar]₁= 485.6
S₁= 44.3
n₁= 49
Sample 2
X[bar]₂= 390.1
S₂= 61.3
n₂= 31
A Student-t distribution is graphically almost identical to a normal distribution. This distribution is defined as:
Where Z is variable with normal distribution and V is a variable with chi-square distribution and Z and V are independent variables.
This is the reason why the distribution looks so much like a normal distribution and, as the sample sizes grow, it tends to be identical to the normal distribution.
Depending on the criteria of the statistics course you are taking, it is the sample size from which you stop choosing to use the student's t and you start using the normal distribution. In general, with n greater than 20 or 30 the normal approximation is already used.
Applying these criteria, since n₁ and n₂ are bigger than 30 I wouldn't recommend using the pooled t-test.
I hope it helps!