1 year ago

Evaluate: 1.62 +3.5 =

1 answer:

3 0

The answer is 5.12 easy as pie

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BartSMP [9]

Answer: (24.02,25.98)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given : Sample size : n= 100

Sample mean : $\overline{x}=25\text{ hours}$

Standard deviation : $\sigma=5\text{ hours}$

Significance level : $\alpha: 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

The confidence interval for population mean is given by :-

$\overline{x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=25\pm(1.96)\dfrac{5}{\sqrt{100}}\\\\=25\pm0.98\\\\=(25-0.98,\ 25+0.98)=(24.02,25.98)$

Hence, the 95% confidence interval for the population mean of training times is (24.02, 25.98).

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4 years ago

PolarNik [594]

Step by step:
6 - 2(x + 6) = 3x + 4
6 - 2x -12 = 3x + 4
6 - 12 = 5x + 4
-6 = 5x + 4
-10 = 5x
-2 = x

So, x = -2

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3 years ago

Stella [2.4K]

The answer to this equation is 1412 or 21-15

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Tanya [424]

The correct answer would be 6x^5-8x^3-8x

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skad [1K]

Answer:

17.98

Step-by-step explanation:

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