Answer:
a) T test
b) Claim
because critical value is not equal to test statistic then reject null hypothesis
Step-by-step explanation:
Construction of hypothesis
H₀ : p = 75
H₁ : p ≠ 75
Here Standard deviation = 7
sample = n = 50
Average = x-bar = 78
Level of significance:
∝ = 5% = 0.05
Degree of freedom:
df = n-1
= 50 -1 = 49
Critical value :
± 1.96
a) T test
test t is used as average X mean is used
Test Statistic:
t = X₂ - X₁ / Sd /√n
= 78 - 75 / 7/√50
=3.0304
Critical region :
We take two tail T test
test statistic is in reject interval. Reject H₀
b) Claim
because critical value is not equal to test statistic then reject null hypothesis
That would be the transitivity<span> of the equality.
Good Luck</span>
Answer: 4.25
Step-by-step explanation:
2(d-3) + 22d= 120-24
2d - 6 + 22d= 96
2d +22d= 96+6
24d= 102
d= 102/24
d= 4.25
Answer:
Step-by-step explanation:
we know that
The area of the figure is equal to the area of a rectangle plus the area of two triangles
<u>Find the area of rectangle</u>
Observing the graph
The area of rectangle is equal to
<u>Find the area of the top triangle</u>
<u>Find the area of the bottom triangle</u>
the area of the figure is equal to
