What percentage would my grade be if I got a 50% on a project that is worth 20% of my grade and my grade is 87%/B+.
1 answer:
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Answer:
t = 3.11 seconds
Step-by-step explanation:
Given that,
At the circus, a clown is shot from a cannon. This situation can be modeled by the function :
Where
'h' is height in feet and 't' is time in seconds
We need to find how long did it take for the clown to reach his highest point. It can be calculated as follows :
We need to solve for t. It can be calculated as follows :
So, the required time is 3.11 seconds.
Answer:
There is enough evidence to support the claim that there is a significant difference in the proportion of residents and commuters who prefer the switch.
Step-by-step explanation:
This is a hypothesis test for the difference between proportions.
The claim is that there is a significant difference in the proportion of residents and commuters who prefer the switch.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The sample 1 (residents), of size n1=200 has a proportion of p1=0.4.
The sample 2 (conmuters), of size n2=200 has a proportion of p2=0.6.
The difference between proportions is (p1-p2)=-0.2.
The pooled proportion, needed to calculate the standard error, is:
The estimated standard error of the difference between means is computed using the formula:
Then, we can calculate the z-statistic as:
This test is a two-tailed test, so the P-value for this test is calculated as (using a z-table):
As the P-value (0.00008) is smaller than the significance level (0.05), the effect is significant.
The null hypothesis is rejected.
There is enough evidence to support the claim that there is a significant difference in the proportion of residents and commuters who prefer the switch.
This is asking what can you raise 2 to in or order to get 4.
X=2