3 years ago

What are the Answers how do u do them ?

Mathematics

1 answer:

ale4655 [162]3 years ago

4 0

Cube root y7903 with zero ssa

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In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n

Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

$14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)$

is the required confidence interval for the true mean length of rods.

3 0

3 years ago

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Fill in the table. Input Values = 0, 2,4 Rule: subtract 3 Input Output

jarptica [38.1K]

Answer:

Input: 0, 2, 4

Output: 3, -1, 1

Step-by-step explanation:

0-3= -3

2-3= -1

4-3= 1

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4 years ago

WILL GIVE BRAINLIEST PLEASE HELP!!!

katovenus [111]

f(x)=2^(x-2) = 2^(-4) = 1/2^4 = 1/16

answer
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3 years ago

If 3x was the opposite of -5, what is the value of x?

makkiz [27]

Answer:

This would mean 3x=5

so to isolate the x, we divide 5 by 3

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3 years ago

What value of n makes this expression equal to 6? 3n - (2 + n)

SVEN [57.7K]

Answer:

Step-by-step explanation:

3n-2-n=6

2n-2=6

2n=8

n=4

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3 years ago

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