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WINSTONCH [101]
3 years ago
12

The confidence interval for the sample regression function slope A) can be used to conduct a test about a hypothesized populatio

n regression function slope. B) can be used to compare the value of the slope relative to that of the intercept. C) adds and subtracts 1.96 from the slope. D) allows you to make statements about the economic importance of your estimate.
Mathematics
1 answer:
mash [69]3 years ago
5 0

Answer:

A) can be used to conduct a test about a hypothesized population regression function slope.

Step-by-step explanation:

A least squares regression line is a standard technique in regression analysis used to make the vertical distance obtained from the data points running to the regression line to become very minimal or as small as possible.

In Mathematics, residuals are used to measure or determine whether or not the line of regression is a good fit or match for the data by subtracting the difference between them i.e the predicted y value and the actual y value, for the x value respectively.

The confidence interval for the sample regression function slope can be used to conduct a test about a hypothesized population regression function slope.

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Multiplying fraction what is 5/8x6/15
BigorU [14]

\text {Hello! Let's Solve this Problem!}

\text {When multiplying fractions you multiply numerator by numerator and } \text {demoninator by denominator. Simplifying is required when the answer comes} \text {out as fraction that can be simplified. Simplify until it's reduced to the lowest} \text {fraction it ca be.}

\text {\underline{Multiply}}

\text {5*6=30}

\text {8*15=120}

\text {Your Answer Would Be:}

\Huge\boxed {30/120}

\text {Since this is a fraction we can simplify we simplify it by 30}

\text {Q: What does simplify mean?}

\text {A: It means to divide. So if someone says simplify 2/4 that means divide.}

\text {\underline {Divide}}

\text {30/120 divided by 30 =}

\text {Your Simplified Fraction Answer Would Be:}

\Huge\boxed {1/4}

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3 0
3 years ago
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Fred Salmon purchased six $1,000 bonds at 92. The bonds pay 6.5%. What was the cost of the bonds? What was the total annual inte
Hunter-Best [27]
What is the cost of the bond?
When you see that a bond was purchased "at 92", this means that the bond was purchased for 92% of the face value. Sometimes the bond purchaser will pay more than the face value (purchased a number greater than 100), generally if the interest rate is higher than the market rate. 

The cost of one bond, then, is 92% of 1,000, or $920.
Since there are 6 bonds, the total cost is 920 x 6 = $5520

What is the total annual interest?
The annual interest is the interest rate on the bond times the face value (not the cost of the bond).
The interest rate is 6.5%, so the annual interest on one bond is:
6.5% x 1000 = $65
6 bonds: $65 x 6 = $390

When we think of yield, we want to consider the real return on the bond. This is the annual interest earned divided by what the purchaser paid for it.
The purchaser paid $5520 for the bonds, and is earning $390.
390 ÷ 5520 = 7.06%.
Note that we can also calculate the return on one bond, rather than the total cost and interest of 6 bonds, and get the same result.
65 ÷ 920 = 7.06%
4 0
3 years ago
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Zielflug [23.3K]
  • 2moles of NaCl produced by 2 moles of NaClO_3
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\\ \bull\sf\longmapsto 2:2=3:x

\\ \bull\sf\longmapsto \dfrac{2}{2}=\dfrac{3}{x}

\\ \bull\sf\longmapsto \dfrac{3}{x}=1

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3 years ago
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How to solve the equation 9v = 8 + v
zloy xaker [14]
Here are some things you should know when solving algebraic equations.

If you add an expression to both sides of an equation, the resulting equation will have the same solution set as the original equation. In other words, they will be equivalent. This is true for all operations. As long both sides are treated the same, the equation will stay balanced.

You will also need to know how to combine like terms. But what are like terms to begin with? Like terms are defined as two terms having the same variable(s) (or lack thereof) and are raised to the same power. In mathematics, something raised to the first power stays the same. So, 5x and 10x are like terms because they both have the same variable and are raised to the first power. You don’t see the exponents because it doesn’t change the value of the terms.

To combine like terms, simplify add the coefficients and keep the common variable(s) and exponent.

The distributive property is another important rule you will need to understand.

The distributive property is used mostly for simplifying parentheses in expressions/equations. 

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So, now we can simplify our expression.

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Now let's solve your equation.

9v = 8 + v
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3 years ago
Here is a circle touching a square.
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Answer: 9πcm²

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Therefore the radius of the circle= side/2 = 3cm

The formula for the ares of the circle is πr²

π*3*3 = 9πcm²

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