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3 years ago

5

Compare the solutions of

1 answer:

MrRa [10]3 years ago

4 0

Answer:

of what?

Step-by-step explanation:

You might be interested in

A toy maker claims his best product has an average lifespan of exactly 14 years. A skeptical quality control specialist asks for

slamgirl [31]

Answer:

interval = [17.3948 , 20.6052]

Step-by-step explanation:

given,

random sample (n) = 45

average product lifespan = 19 years

standard deviation = 4 years

confidence interval of 99 % = ?

we know,

t* = qt(1.99/2 + 44 ) = qt(0.995,44)

t* = 2.692

so,

interval

$x = 19 \pm t* \times (\dfrac{s}{\sqrt{n}})$

$x = 19 \pm 2.692 \times (\dfrac{4}{\sqrt{45}})$

$x = 19 \pm 2.692 \times 0.5963$

$x = 19 \pm 1.6052$

interval = [19 - 1.6052 , 19 + 1.6052]

interval = [17.3948 , 20.6052]

4 0

3 years ago

a weather forecast predicts a 30% chance of rain for each of the next three days. describe a way to simulate the chance that it

topjm [15]

Answer:

Draw a pie chart looking wheel with 30% and 70% and spin the wheel three times and see what it lands on each time

Step-by-step explanation:

5 0

3 years ago

What's the perimeter of a square with a side measurement of 6 in.?

ZanzabumX [31]

The answer is 24
you do 6+6+6+6

4 0

3 years ago

Read 2 more answers

Find the measure of angle X in the figure below

alexandr1967 [171]

Answer:

50 degrees

Step-by-step explanation:

65 times 2=130

180-130=50

7 0

3 years ago

Twice the complement of an angle is 24 degrees less than its supplement. What is the measure of the angle?

Artyom0805 [142]

Answer:

2(90-x)=180-x-24

solve this

180-2x=156-x

solve the rest on your own

Hope it helps!

7 0

3 years ago