Y=1
x=7
that's the answer !!
Answer:
p= 0.9995 and we can conclude that students receiving aid is more than 50% according to the sample results in 2% significance level.
Step-by-step explanation:
: less than or equal 50% of students at his college receive financial aid
: more than 50% of students receive financial aid.
According to the nul hypothesis we assume a normal distribution with proportion 50%.
z-score of sample proportion can be calculated using the formula:
z=
where
- X is the sample proportion (0.65)
- M is the null hypothesis proportion (0.5)
- s is the standard deviation of the sample (
) - N is the sample size (120)
then z=
≈ 3,29
thus p= 0.9995 and since p<0.02 (2%), we reject the null hypothesis.
√(4x⁵y²/9x³)=√(2²x⁴xy²/3²x²x)=(2x²y√x) / (3x√x)= 2xy/3
Answer: <span>√(4x⁵y²/9x³)=2xy/3</span>
Answer:
15
Step-by-step explanation:
0.3% of 5000
= (0.3/100) x 5000
= 0.3 x 50
= 15