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Pie
3 years ago
10

This can have more than one option answer this fast in two minutes

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0

Answer:

Just QT and UX

Step-by-step explanation:

QT and TX intersect and are not parallel.

QU and ST are not parallel or intersecting.

QT and WX are not parallel or intersecting.

QT and UX are parallel.

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We want to have a survey and ask people working for IT companies if they prefer Skype to mobile phones for making calls. We want
weqwewe [10]

Answer:

For this case we want to test if in IT companies more than 20% of employees prefer to use Skype rather than a mobile phone (alternative hypothesis) and the complement would be the the null hypothesis. So then the system of hypothesis are:

Null hypothesis: p =0.2

Alternative hypothesis: p >0.2

And for this case we should use a righ tail test based on the alternative hypothesis.

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if in IT companies more than 20% of employees prefer to use Skype rather than a mobile phone (alternative hypothesis) and the complement would be the the null hypothesis. So then the system of hypothesis are:

Null hypothesis: p =0.2

Alternative hypothesis: p >0.2

And for this case we should use a righ tail test based on the alternative hypothesis.

6 0
3 years ago
The Mendes family bought a new house 6 years ago for $104,000. The house is now worth $177,000. Assuming a steady rate of growth
dusya [7]
Well, the house grew 73 k throughout the 6 years, so it grew around 12.16 k each year. 12.16/104= approximately 11.6923%
Rounded to the nearest 1/10 of a percent, it's 11.7%
7 0
3 years ago
Which statement about the value of x is true? x > 38 x < 39 x < 77 x > 103
grigory [225]

Answer:

Second one

Step-by-step explanation:

3 0
3 years ago
Help <br><br> Don’t use for points and also be clear or I will take the points back
katen-ka-za [31]

Answer:

x=47°

Step-by-step explanation:

..,........................

7 0
2 years ago
Read 2 more answers
At a fundraiser breakfast, the bill for three glasses of orange juice and five pancake specials is $7.60, whereas the bill for o
r-ruslan [8.4K]
A ) 
3 j + 5 p = 7.60
j + 2 p = 2.90
B ) 
j = 2.90 - 2 p
3 ( 2.90 - 2 p ) + 5 p = 7.60
8.70 - 6 p + 5 p = 7.60
p = $1.10
j = 2.90 - 2.20
j<span> = $0.70</span>
C ) 
The bill for 1 glass of orange juice and 1 pancake special would be:
0.70 + 1.10 = $1.80
3 0
3 years ago
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