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3 years ago

Eq-41 if pyrotechnic visual distress signals are required, how many must be onboard?

1 answer:

7 0

The answer is 3 (mostly must be on board).

Quick information:

Pyrotechnic Visual Distress Signals (flares, smoke signals, rockets and etc.)
- required to carried upon by the Coast Guard
-choices include varieties of red handheld or aerial flares for day and for night use

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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

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4 years ago

What grade level is a score of 235 in maps math I am really wanting to know

igomit [66]

Answer: It should be an 8th grade level

(sorry if i'm wrong)

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3 years ago

Which graph best represents y=−2x+3

Savatey [412]

Answer:

download graphing calc, it'll help u sm

Step-by-step explanation:

　　°　　　•　　.°•　　　 ✯

　　　★　*　　　　　°　　　　　°·　　

.　　　•　° ★　• ☄

▁▂▃▄▅▆▇▇▆▅▄▃▁▂

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3 years ago

Response will be saved automatically.

Charra [1.4K]

Answer:

443.28

Step-by-step explanation:

Subtract 42.24 from 570.3 three times.

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3 years ago

There are 20 players in a table tennis competition. each player must play exactly one match against every other player. how many

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There are 10 matches in the competition if you count every other player you'll end up with 10

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4 years ago