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Degger [83]
2 years ago
7

To make sure the machines in the factory run smoothly, the mechanics need to add-1/5 liter of oil to the machine every Monday. O

ne Monday, a mechanic can only find 12 liters of oil in the storage. Is there enough for 65 machines?​
Mathematics
1 answer:
anyanavicka [17]2 years ago
3 0

Answer:

jbouvoubjublo

Step-by-step explanation:

i need points

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Help with this pls.
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Answer:

20 = AC

Step-by-step explanation:

AB+BC = AC

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3 years ago
Independent variable
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Answer:

The variable that you control, often referred to as the x.

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2 years ago
A professor thinks that the students in her statistics class this term are less creative than most students at this university.
choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1

1. Null and alternative hypothesis

H_{0}:\mu=35\\H_{1}:\mu

2. Significance level

\alpha=0.1\\1-\alpha=0.99

Freedom degrees is given by:

v=n-1\\v=23-1=22

For a sgnificance level of 0,01 and 22 freedom degrees,  t-student distribution value is:

t_{0.01;23}=-2. 5083

3. Test statistic

t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }

t=\frac{33-35}{\frac{5}{\sqrt{23} } }

t=-1,918

In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if t

-1.918>-2.5083

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

3 0
2 years ago
Can someone help me with this problem?
Diano4ka-milaya [45]
Can you show the answer choices but I believe is 18
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2 years ago
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