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3 years ago

What do you use the inverse trig functionsto find?

Mathematics

1 answer:

wolverine [178]3 years ago

6 0

Answer:

Step-by-step explanation:

Inverse trig functions are used to find angles.

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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 - α)% confidence interval for population proportion p is:

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

The critical value of z for 95% confidence level is,

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

*Use a z-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%).

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3 years ago

What is the mean proportional between 5 and 6

Misha Larkins [42]

The answer is 5.5 I’m pretty sure

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3 years ago

Does 27.25 round up or stay the same.

miss Akunina [59]

Answer:

it would round up too 27.30

Step-by-step explanation:

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3 years ago

Angela is buying a dress that is on sale for 20% off. If the original price of the dress is $40.00, how much money is Angela sav

neonofarm [45]

The answer is D, 8$. One easy way to do it is to take 10% of 40, which is 4, and double it.

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4 years ago

Use fundamental identities to find the values of the trigonometric functions for the given conditions. tan = − 15/8 and sin >

BartSMP [9]

Step-by-step explanation:

sin = 15/17

cos = -8/17

tan = -15/8

csc = 17/15

sec = -17/8

cot = -8/15

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2 years ago

What do you use the inverse trig functionsto find?​

What do you use the inverse trig functionsto find?