### Hypothesis testing and type errors

Assignment Help Mathematics
##### Reference no: EM13565193

Hypothesis testing and type errors

1.Explain Type I and Type II errors. Use an example if needed.

2.Explain a one-tailed and two-tailed test. Use an example if needed.

3.Define the following terms in your own words.

• Null hypothesis
• P-value
• Critical value
• Statistically significant

4.A homeowner is getting carpet installed. The installer is charging her for 250 square feet. She thinks this is more than the actual space being carpeted. She asks a second installer to measure the space to confirm her doubt. Write the null hypothesis Ho and the alternative hypothesis Ha.

5.Drug A is the usual treatment for depression in graduate students. Pfizer has a new drug, Drug B, that it thinks may be more effective. You have been hired to design the test program. As part of your project briefing, you decide to explain the logic of statistical testing to the people who are going to be working for you.

• Write the research hypothesis and the null hypothesis.
• Then construct a table like the one below, displaying the outcomes that would constitute Type I and Type II error.

•Write a paragraph explaining which error would be more severe, and why.

#### Questions Cloud

 How many shares did he buy : A broker bought a certain number of share for Rs1875. He retained 15 shares with him and sold the rest for Rs1740 gaining Rs4 a share on the cost price. How many shares did he buy? A particle is acted on by two torques about the origin : A particle is acted on by two torques about the origin: τ1 has magnitude 10 N m and pointsin the direction of increasing x, and τ2 has a magnitude of 12N m and points in the direction of decreasing y. Calculate the test statistic : Calculate the test statistic. How much charge is on the outer surface of the shell : A solid conducting ball with charge +2Q is placed inside aconducting shell. how much charge is on the outer surface of the shell Hypothesis testing and type errors : Hypothesis testing and type errors How many seconds does it take him to reach the ship : An astronaut of mass 77.4 kg is 29.9 m far out inspace, with both the space ship and the astronaut at rest withrespect to each other. Without a thruster, the only way to returnto the ship is to throw his 0.546 kg wrench directly awayfrom the ship. Find what angle does the emerging ray make : A flashlight on the bottom of a 4.15 m deep swimming pool sends a ray upward andat an angle so that the ray strikes the surface of the water1.80 m from the point directly abovethe flashlight Sum of angles of an obtuse angle triangle : What is the sum of angles of an obtuse angle triangle? Evaluate the reaction quotient q to determine : For the reaction PCl5 ->

### Write a Review

#### Find the length of the shadow cast by a building tall

If the sun is above the horizon, find the length of the shadow cast by a building tall. Round your answer to the nearest hundredth.

#### Variables have a relationship

Select a current issue from the news, or of interest to you, regarding the relationship between two variables. This topic will be used as the basis of a Graphing Two Variables paper and presentation.

#### Real-life math example

You decide to start your article with a math example that the readers can understand. Describe a real world situation that could be modeled by a function that is increasing, then constant, then decreasing.

#### Find the amount of medicine

Find the amount of medicine to which a body is most sensitive by finding the value of M that maximizes the derivative dR/DM where R = M^2(c/2 - M/3) and C is a constant. How is this related to Mathematics

#### How much the balance will change over the next 10 years

b(10) - b(0) = \$20,633.48 this is the change in balance over the next 10 years

#### Find the rate of change of angle of elevation between

a balloon rises straight up from the corner of 69th and normal at 10 ftsec. what is the rate of change of the angle of

#### What is the area of the garden in square feet

The length of a rectangular garden is 10 feet longer than its width. If the garden's perimeter is 212 feet, what is the area of the garden in square feet?

#### Explain how the polynomial is factored

Explain, in complete sentences, whether or not the expression x2 - 121 fits one of the special patterns and, if so, which one. Explain how the polynomial is factored.

#### He wants to trim least amount off each piece which

neil needs several pieces of wood measuring610 foot each. the lumber store will cut pieces only in increments of0.25

#### Given following piecewise function if f continous on its

given the following piecewise functionfxpiecewisenbspnbspnbspnbsp nbsp4x4nbspnbspnbspnbspfor x lt

#### Prove that the product of a non-zero rational number

Prove that the product of a non-zero rational number and an irrational number is irrational and use a proof by cases to show that for any real numbers a, b and c, rnin(a, min(b, c)) = min(ntirt(a, b), c) .

#### What is the linear and angular speed of the particle

Linear And Angular Speed Problem 1. A particle moves along a circle (that has a radius of r) a distance of s in the time, t. r = 4 centimeters s = What is the linear and angular speed of the particle?