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2 years ago

9

When measuring volume of a cone, if the line goes all the way across the base, define this current value (what is the term for t

hat line) and how do I identify the value of what to input into the formula?

1 answer:

krek1111 [17]2 years ago

6 0

Answer: the line across the circle is the diameter, you find diameter by multpyling radius by two

Step-by-step explanation:

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In a simple random sample of 300 boards from this shipment, 12 fall outside these specifications. Calculate the lower confidence

Lyrx [107]

Answer:

The 95% confidence interval for the percentage of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).

Step-by-step explanation:

In a random sample of 300 boards the number of boards that fall outside the specification is 12.

Compute the sample proportion of boards that fall outside the specification in this sample as follows:

$\hat p =\frac{12}{300}=0.04$

The (1 - <em>α</em>)% confidence interval for population proportion <em>p</em> is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

The critical value of <em>z</em> for 95% confidence level is,

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

*Use a <em>z</em>-table.

Compute the 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification as follows:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\=0.04\pm1.96\sqrt{\frac{0.04(1-0.04)}{300}}\\=0.04\pm0.022\\=(0.018, 0.062)\\\approx(1.8\%, 6.2\%)$

Thus, the 95% confidence interval for the proportion of all boards in this shipment that fall outside the specification is (1.8%, 6.2%).

6 0

3 years ago

CAN SOMEONE HELP PLEASE!!

grandymaker [24]

The predicted time remaining has decreased by 30 years, so the second one would be the answer

3 0

3 years ago

What is the decay factor in the exponential decay function y=a (1-r) t

MrRissso [65]

Answer:

in this form, the "-r" would cause the result to decrease

I assume that the answer is "r"

if r = .1 (10 %) then 1-.1 = .9

if you have 100 items then y = 100(.9)^1 = 90

the total decreased by 10% ... y = 100(.9)^2 after 2 time periods

Step-by-step explanation:

5 0

3 years ago

Write an equation which<br> represents the relationship<br> between x and y shown in this<br> table?

Wittaler [7]

Answer:

y=1/3 -4

Step-by-step explanation:

use y2-y1/ x2-x1

2-1/2-+1 + 1/3

8 0

3 years ago

Read 2 more answers

Help me pls ASAP!

Cloud [144]

It wold be letter D.

7 0

3 years ago