3 years ago

I need help with this

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

8 0

Answer:

y= [7] * +[0]

Step-by-step explanation:

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An environmental group at a local college is conducting independent tests to determine the distance a particular make of automob

melomori [17]

Answer:

$26.5265$

Step-by-step explanation:

<u>Confidence Interval</u>

When the population standard deviation $\sigma$ is known, the formula for a confidence interval for a population mean $\bar x$ is:

$\displaystyle \bar x \pm z\frac{\sigma}{\sqrt{n}}$

Where n is the sample size and z is the corresponding z-value from the standard normal distribution for the selected confidence level. The value of z for a 95% confidence interval is z=1.96. The rest of the values are

$\bar x=28.2,\ \sigma=2.7, \ n=10$

Calculating the confidence interval

$\displaystyle 28.2 \pm 1.96\frac{2.7}{\sqrt{10}}$

$\displaystyle 28.2 \pm 1.6735$

Or, equivalently

$26.5265$

6 0

3 years ago

Need to know how to solve them.

mihalych1998 [28]

Answer:

Only five points

Step-by-step explanation:

For such an question

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3 years ago

What is 30 divide by 4?

Sedaia [141]

Answer:

30 ÷ 4 = <em>7.5</em>

Step-by-step explanation:

This means that:

7.5 fits into 30 4 times

Example:

7.5 + 7.5 + 7.5 + 7.5

\______\______/_______/

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

7 0

3 years ago

5 1/2 ft equals how many inches

enot [183]

5 1/2 ft equals 66 inches

3 0

3 years ago

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Full‐me Ph.D. students receive an average of $12,837 per year. If the

Pavlova-9 [17]

Answer:

.0022

Step-by-step explanation:

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1 year ago