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dimaraw [331]
3 years ago
6

From 3 o'clock to 3:45 how many degrees is that

Mathematics
2 answers:
dusya [7]3 years ago
7 0

It's a period of time equal to 45 minutes.
___________________________

Since I posted this answer, crowds of people have complained
that I should have said how many degrees, not how many minutes. 

The problem is:  '3 o,clock' and '3:45' are not angles.  They're both times. 
I knew that right away, as soon as you called the first one ' o'clock '.  So
right there, I knew that we weren't dealing with angles.  The only way
I knew to answer the question was in terms of time.

REY [17]3 years ago
6 0
Every 15 minutes is 7.5 degrees times by 3 is 22.5 degrees to get to 3:45
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Respuesta:

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Por eso,

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Inessa05 [86]

Answer:

t=\frac{6.31-6}{\frac{1.2}{\sqrt{35}}}=1.5283    

d. 1.5283

Step-by-step explanation:

Data given and notation    

\bar X=6.31 represent the sample mean    

s=1.2 represent the sample standard deviation    

n=35 sample size    

\mu_o =6 represent the value that we want to test    

t would represent the statistic (variable of interest)    

p_v represent the p value for the test (variable of interest)    

State the null and alternative hypotheses.    

We need to conduct a hypothesis in order to check if the mean is higher than 6 seconds, the system of hypothesis are :    

Null hypothesis:\mu \leq 6    

Alternative hypothesis:\mu > 6    

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:    

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)    

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Calculate the statistic    

We can replace in formula (1) the info given like this:    

t=\frac{6.31-6}{\frac{1.2}{\sqrt{35}}}=1.5283    

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