Answer:
12
Step-by-step explanation:
thats th answer hope its right
Answer:
Reject at 5%, accept at 1% the null hypothesis
Step-by-step explanation:
Set up hypotheses as
(Left tailed test)
Population std dev = 6
Sample std error =
Mean difference = -1.5
Since sigma is known we can use Z test
Z = mean diff/std error = -1.7533
p value = 0.039
a) Since p value <0.05 we reject H0. There is evidence that the true mean is different from 60 wpm
b) Yes, because his sample would have been biased since he may want to prove his belief so slow or inefficient persons he would have selected in the sample.
c) For 99% confidence interval critical value = 2.58
Confidence interval for population mean = 58.5±2.58*std error
=(56.2928, 60.7072)
Since this contains 60, the hypothesized mean, we accept null hypothesis.
we do not have evidence to reject the claim that the average graduate can type 60 wpm at 1% level of significance.
There is nothing wrong with you. Everyone ad their ups and downs
This is a process that happens in most humans. most often happening to teenagers due to their increased hormones during their puberty. I would recommend getting attached to music as a form of reliance. I too had my days when I would be depressed but I got through it by attaching myself to something rather than someone. people's actions in real life during this time can seem exaggerated to you so it would be best to just ignore people for now if you are sensitive and just listen to music, study, or read a book to take your mind off the stress. However, based on the current trends I would recommend you to get attached to this thing called Kpop. recently I conducted a survey and many people said they were happier watching stuff about pretty people rather than going out and socializing. you could attach yourself to a particular idol and "stan" them as it would keep your mind off people. however, this method although effective can lead you to become a brain dead fan who will waste money and become a loner I suggest that if taking this idol attachment approach that you go out and try to connect with new people or try to reunite with your old people too so that you don't lose touch with reality. And lastly, it could be just that this Current situation stress is weighing too heavily on you and you have mistaken it and you just need a period of rest to get your bearings back. I recommend you try a period of resting and self-indulgence, then if that doesn't work music, and if the music doesn't work then attach yourself to an idol. Don't give up and try something new
The answer is .62
When looking at the diagram given the bar for 8 hours is slightly past .6 but not by much. So the answer is .62
For this case we have that the distance that it is necessary to cross to arrive at the lake is of 216 miles.
If the family went there with an average of
To know the time it took me to travel 216 miles, we make a rule of three:
Let "x" be the time spent going to the lake:
48 miles -------------> 1 h
216 miles -----------> x
Thus, to reach the lake they had to travel 4.5 hours.
Now, back home they averaged
To know how much time they used back home, we make a rule of three (to return also travel 216 miles):
Let "y" be the time spent returning home:
54 miles -------------> 1 h
216 miles -----------> y
Thus, the total time is given by:
Answer:
8.5 hours
Option B