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3 years ago

Mi hermano jueja al tenis ____________ (every now and then).

Mathematics

2 answers:

lesya [120]3 years ago

7 0

Answer:

B. de vez en cuando.

Step-by-step explanation:

dem82 [27]3 years ago

3 0

Answer:

B. de vez en cuando

Step-by-step explanation:

the literal transalation for "every now and then" in spanish is de vez en cuando. Plus im am a native spanish speaker ;)

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A manufacturer of paper coffee cups would like to estimate the proportion of cups that are defective (tears, broken seems, etc.)

Maksim231197 [3]

Answer:

The 95% confidence interval is $0.0503 < p < 0.1297$

The sample proportion is $\r p = 0.09$

The critical value is $Z_{\frac{\alpha }{2} } = 1.96$

The standard error is $SE =0.020$

Step-by-step explanation:

From the question we are told that

The sample size is n = 200

The number of defective is k = 18

The null hypothesis is $H_o : p = 0.08$

The alternative hypothesis is $H_a : p > 0.08$

Generally the sample proportion is mathematically evaluated as

$\r p = \frac{18}{200}$

$\r p = 0.09$

Given that the confidence level is 95% then the level of significance is mathematically evaluated as

$\alpha = 100 - 95$

$\alpha = 5\%$

$\alpha = 0.05$

Next we obtain the critical value of $\frac{ \alpha }{2}$ from the normal distribution table, the value is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the standard of error is mathematically represented as

$SE = \sqrt{\frac{\r p (1 - \r p)}{n} }$

substituting values

$SE = \sqrt{\frac{0.09 (1 - 0.09)}{200} }$

$SE =0.020$

The margin of error is

$E = Z_{\frac{ \alpha }{2} } * SE$

=> $E = 1.96 * 0.020$

=> $E = 0.0397$

The 95% confidence interval is mathematically represented as

$\r p - E < \mu < p < \r p + E$

=> $0.09 - 0.0397 < \mu < p < 0.09 + 0.0397$

=> $0.0503 < p < 0.1297$

7 0

3 years ago

Does anyone have any idea on how to do this? I have notes for it but i just don't understand how to get to the answer.. and if t

Igoryamba

yes, i know how to do it

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3 years ago

Do you always eat breakfast?

dybincka [34]

Answer:

unbias

Step-by-step explanation:

Not asking specific group or person.

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3 years ago

A triangle has sides with lengths of 3 feet, 6 feet, and 8 feet is it a right triangle?

Zielflug [23.3K]

Answer:

$Solution,\\Longest~side(h) = 8ft.\\Perpendicular(p) = 3ft.\\Base(b) = 6ft.\\Now, \\h^2 = (8)^2 = 64sq.ft.\\p^2+b^2 = 3^2+6^2 = 9+36 = 45sq.ft.\\Since, h^2\neq p^2+b^2, ~the~triangle~is~not~a~right~triangle.$

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3 years ago

Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The

Wewaii [24]

answer:133.3km

Step-by-step explanation:

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3 years ago

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