Answer:
There is sufficient evidence at 0.05 significant level to support company's claim.
Step-by-step explanation:
We have these informations from the question
n = 1400
P^ = 31% = 0.31
Alpha level = 5% = 0.05
Then we come up with the hypothesis
H0: P = 0.28
H1: P>0.28
From here we calculate the test statistic
z = p^ - p/√pq/n
P = 0.28
q = 1-0.28
= 0.72
z = 0.31-0.28/√(0.31*0.72)/1400
= 0.03/√0.0001594
= 0.03/0.012
= 2.5
Then we have a p value = 0.00621
The p value is less than significance level
0.00621<0.05
So the null hypothesis is rejected.
We conclude that There is sufficient evidence at 0.05 significant level to support company's claim.
60 percent of 264
=(60/100)*264
= (60*264)/100
= 15840/100=158.4
Now the aim of the above discussion is to internalize the mathematical relationships for open-end air columns in order to perform calculations predicting the length of air column required to produce a given natural frequency. And conversely, calculations can be performed to predict the natural frequencies produced by a known length of air column. Each of these calculations requires knowledge of the speed of a wave in air (which is approximately 340 m/s at room temperatures). The graphic below depicts the relationships between the key variables in such calculations. These relationships will be used to assist in the solution to problems involving standing waves in musical instruments.
Answer:
A.) = 6
If RE = 12, then RD = 6
B.) = 10
If BR = 10, then BE = 10
C.) = 16
If BD = 8, then BK = 16
D.) = 30*
<m9 = 90*, and <m2 = 60*, so add them and subtract from 180*, you are left with <m1 = 30*
E.) = 60*
If <m2 = 60*, then <m3 = 60*
F.) = 90*
It`s a 90* angle because BK and RE and perpendicular
G.) = 60*
If <m1 = 30*, then multiply by two because it is symmetrical
I would show all my work but you seem to be in a rush. Hope this helps!
Answer:
Since there are 60 seconds in one minute, we can write this as 146,000 inches per minute. Since there are 60 * 60 = 3600 minutes in one day, we can write it as 525,600,000 inches per day. Since there are about 63360 inches in one mile, the answer is about 8295 miles per day.
