Mathematics, 21.12.2020 06:20 azinanees

It is known that the mean cholesterol level for all the people is 190, and the standard deviation is 15. We test 100 random smokers! and find that the average
cholesterol level in our sample is 195. Can we claim based on that sample that the
cholesterol level of smokers is higher than that of the general population, if we
need the confidence level a=0.99 to make our claim (use Hypothesis Testing to
answer this question)? (20 points).

Answers: 2

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Answer from: Quest

The answer is: a = about 63.59ft2 for 15
Ineed the answers to 14 and 15 reply to this question trying to get things done right away

Answer from: Quest

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°

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