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Anestetic [448]
3 years ago
8

Alther.† Suppose a small group of 15 Allen's hummingbirds has been under study in Arizona. The average weight for these birds is

x = 3.15 grams. Based on previous studies, we can assume that the weights of Allen's hummingbirds have a normal distribution, with σ = 0.24 gram.
(a) Find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error? (Round your answers to two decimal places.)
Mathematics
1 answer:
fgiga [73]3 years ago
6 0

Answer:

Step-by-step explanation:

Loop

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BabaBlast [244]

Answer:

328.5 cm

Step-by-step explanation:

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6 0
3 years ago
What is the value of n in the proportion below n/28 = 4/7​
butalik [34]

n is 16

\frac{n}{28}  =  \frac{4}{7}  \\  n = \frac{4 \times 28}{7}  = 16

good luck

3 0
3 years ago
Read 2 more answers
How many solutions does 2x+ 2x+ 2=4+2x have
yuradex [85]
Let's see!
2x + 2x + 2 = 4 + 2x\\ 4x + 2 = 4 + 2x\\ 4x - 2x + 2 = 4 + 2x - 2x\\ 2x + 2 = 4\\ 2x + 2 - 2 = 4 - 2\\ 2x + 0 = 2\\ 2x = 2\\ 2x/2 = 2/2\\ x = 1\\
The answer is B
3 0
3 years ago
A w=-8<br> B w=-5 <br> C w=5<br> D w=8
algol [13]

Answer:

D

Step-by-step explanation:

Plug in every scenario, in see if it equal to each other.

D is the only one that is equal.

8 0
3 years ago
Anya’s team won 5 out of every 7 games this season.
spin [16.1K]

Answer:

20 out of 28 games.

Step-by-step explanation:

28 divided by 7 is 4.

5 times 4 is 20.

20 out of 28 games.

(This is simple math honestly.)

7 0
2 years ago
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