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
Answer:
option C y=4
Step-by-step explanation:
we have:
6y - 20 = 2y - 4.
6y-2y=20-4
4y=16
y=16/4
y=4
Answer: 1.03% Explanation: Divide the amount of money after 1 year by his original investment.
Hi there
Capital gain
500,000−350,000
=150,000
Capital gain tax
150,000×0.15
=22,500
Hope it helps
