3 years ago

14. Find mZCDB. B С 18 7 D 47° А A

Mathematics

1 answer:

Anna [14]3 years ago

8 0

Answer:

Step-by-step explanation:

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The heights of dogs, in inches, in a city are normally distributed with a population standard deviation of 3 inches and an unkno

Nitella [24]

Answer: 1.2703

Step-by-step explanation:

Given : Sample size : n= 17, which is a small sample (n<30), so we use t-test.

Significance level : $\alpha:1-0.90=0.1$

Then , Critical value : $t_{n-1,\alpha/2}=t_{16, 0.05}\pm1.745884$

Standard deviation: $s=3\text{ inches}$

The formula to find the margin of error : -

$E=t_{n-1,\alpha/2}\dfrac{s}{\sqrt{n}}\\\\\Rightarrow\ E=(1.745884)\dfrac{3}{\sqrt{17}}\\\\\Rightarrow\ E=01.27031720154\approx1.2703$

Hence, the error bound (EBM) of the confidence interval with a 90% confidence level.=1.2703

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2 years ago

HELP!!in slope-intercept form, what is the equation of the line containing the points (−1, 2) and (2, −1)?

Lorico [155]

Answer:

y = -x - 1

Step-by-step explanation:

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3 years ago

What is the factorization of x2 - 6x + 5?

WINSTONCH [101]

The answer is
D. (x - 5)(x - 1)

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3 years ago

When you earn money you pay income tax.

Nesterboy [21]

20% of £37500 = 20/100 x 37500 = £7500 (TAX)
40% of £112500 = 40/100 x 112500 = £45000 (TAX)
0% of £12500 = 0 (TAX)
25% of x = 9260
x= £37040 ( kim earned that year)

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2 years ago

A membership at a yoga studio costs $35 per month.

Anton [14]

$35 times 20 months would cost you $700.

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3 years ago

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