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Dimas [21]
3 years ago
10

A researcher is 95% confident that the interval from 19.7 posts to 27.3 posts captures Mu the true mean amount of posts high sch

ool students make daily on social media.
Is there evidence that the true mean number of posts high school students make is less than 27?

No. There is not evidence for the population mean to be less than 27, because 27 is within the 95% confidence interval.
No. There is not evidence for the population mean to be less than 27, because there are values greater than 27 within the 95% confidence interval.
Yes, there is evidence for the population mean to be less than 27, because 27 is within the 95% confidence interval.
Yes, there is evidence for the population mean to be less than 27, because 27 is closer to the upper bound of the 95% confidence interval than the lower bound.
Mathematics
1 answer:
sergejj [24]3 years ago
6 0

Answer:

No. There is not evidence for the population mean to be less than 27, because 27 is within the 95% confidence interval.

Step-by-step explanation:

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On a particularly boring transatlantic flight, one of the authors amused himself by counting the heads of the people in the seat
xxTIMURxx [149]

Answer:

The answer is 5.

Step-by-step explanation:

Total number of people noticed by author = 28

Total number of black haired people = 27

So, total number of non black haired people = 1

Also given that 6 people had whole row of seats to themselves.

Let x be the number of non black haired people who had a whole row to themselves.

Since there is only one person with non black hair and has a whole row to himself because it is mentioned that one person had a row to himself which is non black haired.

Looking at above information we can say that x = 1.

Now we can say that the number of black haired people who had a whole row to themselves =  6-x

or 6-1=5

Hence, the answer is 5.

6 0
3 years ago
What would it be??????
igor_vitrenko [27]

-15 + (7-3) =

-15 + 4 =

 -11


6 0
4 years ago
Some please help I’ll give you Brainliest
Allisa [31]

Answer: line N

Lenght of XY: 3

Step-by-step explanation:

The line N splits <u>XY</u> into two parts

5x+8=9x+12

-9x on each side

-4x+8=12

-8 on each side

-4x=4

divide by -4 on each side

x=-1

8 0
3 years ago
Which table of values could be generated by the equation 4y−2x=16
Zanzabum

Answer:

x=0, y=4

x=2, y=5

x=4, y=6

x=6, y=7

x=8, y=8

x=10, y=9

For every x value goes up one, the y value goes up 2.

Step-by-step explanation:

Please mark brainliest and have a great day!

8 0
3 years ago
What is 70% of 66 ? plz help me
Dmitry_Shevchenko [17]
46.2
you do 70/100=x/66
then cross multiply so (70•66)=100x
then you get 4620=100x
then you divide both sides by 100 and get x=46.2
5 0
3 years ago
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