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mamaluj [8]
3 years ago
9

What did the Election say after fixing a light bulb at the top of a empire building

Mathematics
1 answer:
madreJ [45]3 years ago
5 0

Answer: It was the “high light” of his career

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A digital camcorder repair service has set a goal not to exceed an average of 5 working days from the time the unit is brought i
garri49 [273]

Answer:

The degrees of freedom first given by:  

df=n-1=12-1=11  

Then we can find the critical value taking in count the degrees of freedom and the alternative hypothesis and then we need to find a critical value who accumulates 0.05 of the area in the right tail and we got:

t_{\alpha}= 1.796

And for this case the rejection region would be:

b) Reject H0 if tcalc >1.7960

Step-by-step explanation:

Information given

5, 7, 4, 6, 7, 5, 5, 6, 4, 4, 7, 5.

System of hypothesis

We want to test if the true mean is higher than 5, the system of hypothesis are :  

Null hypothesis:\mu \leq 5  

Alternative hypothesis:\mu > 5  

The statistic is given by:

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

The degrees of freedom first given by:  

df=n-1=12-1=11  

Then we can find the critical value taking in count the degrees of freedom and the alternative hypothesis and then we need to find a critical value who accumulates 0.05 of the area in the right tail and we got:

t_{\alpha}= 1.796

And for this case the rejection region would be:

b) Reject H0 if tcalc >1.7960

6 0
3 years ago
Find the difference between 7/10 and 14/15​
miskamm [114]

Answer:

7/30

Step-by-step explanation:

The difference means subtracting so 14/15 - 7/10 = 7/30 or decimal form is 0.23

7 0
3 years ago
(0.00032)(5.2x10^6)/6.4x10^5
Elena-2011 [213]

Answer:

26000000

Step-by-step explanation:

sorry if its wrong

7 0
3 years ago
Jill rides her bike to her friend’s houses. Marge lives 3 miles away and Rocky lives 5 miles away. Eva lives 4 miles away and Pe
STALIN [3.7K]

Answer:

She will ride an average of 5 miles

Step-by-step explanation:

To calculate the average, add all the values together and divide by the amount of values:

3 + 5 + 4 + 8 = 20

20 ÷ 4 = 5

Average of 5 miles

4 0
3 years ago
The base of a triangle is represented by (2x − 6) and the height by (x − 2). Which polynomial expression BEST represents the are
BabaBlast [244]
Area of a triangle= \frac{1}{2} *base*height
A=\frac{1}{2} *(2x-6)*(x-2)
A=\frac{1}{2} ( 2x^{2} -4x-6x+12)
A=x^{2} -2x-3x+6
A=x^{2} -5x+6
7 0
3 years ago
Read 2 more answers
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