2 years ago

Fifty hundredths Seventy-five hundredths Twenty hundredths Eighty hundredths

Mathematics

1 answer:

MAXImum [283]2 years ago

7 0

I think the answer is c sorry if I’m wrong

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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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Which choice below is a common multiple of 8 and 10 (but not the least common multiple).

Ilya [14]

Answer:

160

Step-by-step explanation:

4 is too low, 90 cant be divided by 8 and 160 is the only answer even though it is highest number

8 0

2 years ago

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Simplify and show step by step 30 POINTS!

PIT_PIT [208]

Step-by-step explanation:

the explanation is in the diagram above

4 0

2 years ago

List 3 values that make 24<y +u true

Andrei [34K]

Y=2 u=6

y=8 u=12

y=10 u=11

4 0

3 years ago

Angela has 63 eggplants in 21 rows of her eggplant garden.

Lorico [155]

Answer:

A. 27

Step-by-step explanation:

21 x 3 = 63

9 x 3 = 27

6 0

2 years ago