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Eduardwww [97]
3 years ago
9

A 95% confidence interval for a population mean is computed from a sample of size 400. Another 95% confidence interval will be c

omputed from a sample of size 100 drawn from the same population. Choose the best answer to fill in the blank: The interval from the sample of size 400 will be approximately _____ as the interval from the sample of size 100.
Mathematics
1 answer:
natka813 [3]3 years ago
6 0

Answer:

A 95% confidence interval for a population mean is computed from a sample of size 400. Another 95% confidence interval will be computed from a sample of size 100 drawn from the same population. Choose the best answer to fill in the blank: The interval from the sample of size 400 will be approximately _______as the interval from the sample of size 100.

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A researcher has noted that the repair times of a sample of 15 new lawn mowers has a standard deviation of 4 minutes. A 95% conf
mamaluj [8]
Answer: C
Hope this helped
4 0
3 years ago
in the game of hearts, four players are each dealt 13 cards from a deck of 52. is this a function? if so, what are the domain an
skelet666 [1.2K]

Based on the fact the game of hearts, four players are each dealt 13 cards from a deck of 52

  • The domain is the deck of 52 cards
  • codomain is 4 players
  • function, f(k) maps a card to each player
  • It is surjective

This is further explained below.

<h3>What is a surjective Function?</h3>

A surjective function is a kind of function that exists in mathematics that ensures that any element y may be transferred to element x in such a way that f(x) equals y.

To put it another way, each element that makes up the function's codomain is the mirror image of at least one element that makes up the domain.

Generally, function, f(k) maps a card to each player

And since each player is dealt 13 cards st 13 of the cards are mapped to each player.

It is a function as one card is mapped to one and only one player.

The function is not injective because 13 cards 1 are mapped to one player so it is a many-one function but the injective function does not map two elements to a common clement.

In conclusion, It is surjective as each player is dealt 13 cards. the function is not injective hence rot bijective.

Read more about surjective

brainly.com/question/13423972

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5 0
1 year ago
What is the slope of the line passing through the points (1, –5) and (4, 1)?
MakcuM [25]
The slope would be -2 because you would use the equation m= y2-y1/x2-x1
3 0
3 years ago
Read 2 more answers
3/7 of which is 2 1/14
mash [69]

Answer:

4 and 5/6; 29/6.

Step-by-step explanation:

3/7 of x is 2-1/14.

(3/7)x = 29/14

x = (29/14) * (7/3)

x = (29/2) * (1/3)

x = 29/6

3/7 of 4 and 5/6 is 2 1/14.

Hope this helps!

3 0
3 years ago
Read 2 more answers
There are approximatley 402 1/4 meters around a typical running track.sandra has challanged herself to run 10 laps a fay for 5 d
Lyrx [107]
402.25 * 10 = 4,022.5   Since there are five days and 10 laps per day, just multiply the second number by five    4,022.5 * 5  = 20,112.5 meters
5 0
3 years ago
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