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2 years ago

9

Suppose we take a survey and use the sample proportion to calculate a confidence interval. Which level of confidence gives the c

onfidence interval with the largest margin of error

1 answer:

Alexxandr [17]2 years ago

4 0

Answer:

See below

Step-by-step explanation:

I do not see any options, but it is important to note that the bigger the level of confidence, the larger the margin of error will be.

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A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is s

andrew11 [14]

So, let's let w be the length of the first piece of the board.
(I was going to do l (small L) but it's too hard to see on computers)

second piece is 2w since it's twice the length of first.
third piece is 6w, since it's six times longer than the first.
and these three pieces were one one 180ft board, therefore, that means:
w + 2w + 6w = 180

now let's solve for w (length of first piece)!
w + 2w + 6w = 180
7w = 180
w = 180/7 ≈ 25.71ft

Therefore, the first piece of the board would be approximately 25.71ft.

8 0

3 years ago

The probability that an egg on a production line is cracked is 0.01. Two eggs are selected at random from the production line. F

musickatia [10]

Answer:

$P(X \geq 1)=1-P(X$

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

Step-by-step explanation:

Let X the random variable of interest "number of craked eggs", on this case we now that:

$X \sim Binom(n=2, p=0.01)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(x \geq 1)=1-P(X$

And we can find the probability:

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

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3 years ago

Which column represents the correct method for the proof of the following statement?

kramer

Answer:

90

Step-by-step explanation:

the colums add up to angle 1, which make angle 2 adjacent.

9-9=0

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2 years ago

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I am Lyosha [343]

Amphitrite1040Answer:

Amphitrite1040

Step-by-step explanation:

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3 years ago

Two students were asked if they liked to read. Is this a good example of a statistical question? Why or why not? A Yes, this is

guapka [62]

Answer:

c

Step-by-step explanation:

only 2 students were asked the question, 2 students don't represent the whole population

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3 years ago

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