Answer:
Since the calculated value of t =-0.427 does not fall in the critical region so we accept H0 and conclude that there is enough evidence to show that mean difference in the age of onset of symptoms and age of diagnosis is 25 months .
Step-by-step explanation:
The given data is
Difference d= -24 -12 -55 -15 -30 -60 -14 -21 -48 -12 -25 -53 -61 -69 -80
∑ d= -579
∑d²= 29871
1) Let the hypotheses be
H0: ud= 25 against the claim Ha: ud ≠25
H0 : mean difference in the age of onset of symptoms and age of diagnosis is 25 months .
Ha: mean difference in the age of onset of symptoms and age of diagnosis is not 25 months.
2) The degrees of freedom = n-1= 15-1= 14
3) The significance level is 0.05
4) The test statistic is
t= d`/sd/√n
The critical region is ║t║≤ t (0.025,14) = ±2.145
d`= ∑di/n= -579/15= -38.6
Sd= 23.178 (using calculators)
Therefore
t= d`/ sd/√n
t= -38.6/ 23.178√15
t= -1.655/3.872= -0.427
5) Since the calculated value of t =-0.427 does not fall in the critical region so we accept H0 and conclude that there is enough evidence to show that mean difference in the age of onset of symptoms and age of diagnosis is 25 months .
Answer
correct is
A
Explanation
Answer:
1/9x + 1 = 7/3
-1 -1
1/9x = 1 1/3
divide by 1/9 on both sides to isolate x
x = 12
Answer:
assets to be overstated
Step-by-step explanation:
Given that a credit to an asset account was posted to an expense account.
We know that debit all comes in and credit all goes out for asset account
When asset account has to be credited there is a sale of asset and hence asset has to be reduced in value.
If wrongly posted to expenses account, then expenses would be credited by that amount. This will give assets a higher value and expenses a lower value.
When expenses are lower, profits high and hence capital would be ovestated.
So correct option is
assets to be overstated
Answer:
(0, - 3.5 )
Step-by-step explanation:
Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
[ (x₁ + x₂ ), (y₁ + y₂ ) ]
Here (x₁, y₁ ) = A(- 5, - 4) and (x₂, y₂ ) = B(5, - 3)
midpoint = [ (- 5 + 5), (- 4 - 3 ) ] = ( (0), (- 7) ) = (0, - 3.5 )