Ask question

Ask question

All categories

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?

1 answer:

anyanavicka [17]2 years ago

3 0

Answer:

jbouvoubjublo

Step-by-step explanation:

i need points

You might be interested in

Free points guess my height it is between 5 to 6 feet tall

bulgar [2K]

I think its uhh carrot

but srsly I think your 5"4"

5 0

2 years ago

Read 2 more answers

Help with this pls.

Phoenix [80]

Answer:

20 = AC

Step-by-step explanation:

AB+BC = AC

11+9 = AC

20 = AC

6 0

3 years ago

Independent variable

amm1812

Answer:

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

7 0

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

3 0

2 years ago

Read 2 more answers