1/10 of 1,700,000 km² is 170,000 km² .
10% of 3.99=0.399x4=1.596
1% of 3.99=0.0399x5=0.1995
1.596+0.1995=1.7955
1.8(Rounded)+3.99=5.79
Answer:
The difference in the sample proportions is not statistically significant at 0.05 significance level.
Step-by-step explanation:
Significance level is missing, it is α=0.05
Let p(public) be the proportion of alumni of the public university who attended at least one class reunion
p(private) be the proportion of alumni of the private university who attended at least one class reunion
Hypotheses are:
: p(public) = p(private)
: p(public) ≠ p(private)
The formula for the test statistic is given as:
z=
where
- p1 is the sample proportion of public university students who attended at least one class reunion (
)
- p2 is the sample proportion of private university students who attended at least one class reunion (
)
- p is the pool proportion of p1 and p2 (
)
- n1 is the sample size of the alumni from public university (1311)
- n2 is the sample size of the students from private university (1038)
Then z=
=-0.207
Since p-value of the test statistic is 0.836>0.05 we fail to reject the null hypothesis.
The difference of five and negative 7.
<span><span>
1.
</span>Which becomes 5 – (-1) = 6. Such that 5 + 1 = 6.</span>
The total number of fruits available.
Three hundred apples
minus thirty oranges.
<span><span>1.
</span>300 – 30 = 270 fruits</span>
The room temperature of thirty degrees Celsius has risen to
fourty-five degrees Celsius. What is the difference of the final and initial temperatures?
<span><span>
1.
</span>45 – 30 = 15</span>
When the ball rose with an acceleration of 2 m/s2 what is
the difference between the ball’s acceleration and the gravitational force that
acted on it?
<span><span>
1.
</span>-10 - 2 = -12 </span>
Distance=speed times time
distance=30mi
speed=15mph
t=t
so
30=15 times t
divide both sides by 15
2=t
2 hours