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3 years ago

Easy! plz help me tho

Mathematics

1 answer:

Hatshy [7]3 years ago

7 0

Answer:

bias

Step-by-step explanation:

the wording of the question may be misleading. the way the question is phrased influences the way the person who is being surveyed answers.

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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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Pls help urgently extra points and mark brainlist

Andreas93 [3]

Answer:

Step-by-step explanation:

9 is not a prime factor and of you divide 210 with 11, it will be a decimal

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3 years ago

Write this number in word form 3,388,198

Minchanka [31]

Three million three hundred eighty eight thousand one hundred ninety eight.

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3 years ago

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3×=18 what the answer to this problem

Luden [163]

Answer:

x=6

Step-by-step explanation:

Divide both sides by 3

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Natalie has pounds of potatoes. She needs of that amount. How many pounds of potatoes does she need?

Savatey [412]

She will need 10 pounds

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3 years ago