Mathematics Homework Help

BUS 308 Ashford University Week 1 Descriptive Statistics in Data Collection Paper

 

Step 1: Read:

Step 2: Do:

One common error students get is: Descriptive Statistics – Input range contains non-numerical data. This is because you included non-numerical data, so delete those “yes/no” data in the range and run the test again.

In a managerial report, use the methods of descriptive statistics to

  • Summarize the data in Data File AsiaMBA.
  • Summarize each variable in the data set.

Step 3: Discuss:

  • What new insights do these descriptive statistics provide concerning Asia-Pacific business schools? You should also analyze differences between local and foreign tuition costs, between mean starting salaries for schools requiring and not requiring work experience, and between starting salaries for schools requiring and not requiring English tests.

Mathematics Homework Help

USF Statistics & Multiple Population Proportions Worksheet

 

Q1 If there are three or more populations, then it is
a. possible to test for equality of three or more population proportions
b. impossible to test for equality of the three population proportions, because chi-square tests deal with only two populations
c. customary to use a t distribution to test for equality of the three population proportions
d. reasonable to test for equality of multiple population proportions using chi-square lower tail tests

Q2 The degrees of freedom for a data table with 10 rows and 10 columns is
a. 100
b. 81
c. 18
d. 20
Q3 When individuals in a sample of 150 were asked whether or not they supported capital punishment, the following information was obtained.
Do you support Number of
capital punishment? individuals
Yes 45
No 55
No Opinion 50
We are interested in determining whether or not the opinions of the individuals (as to Yes, No, and No Opinion) are uniformly distributed. The p-value is
a. less than .01.
b. larger than .1.
c. between .01 and .05.
d. between .05 and .1.

Q4 The following table shows the number of individuals in a sample of 450 who indicated they support the new tax proposal.
Political Party Support
Democrats 150
Republicans 170
Independents 130
We are interested in determining whether or not the opinions of the individuals of the three groups are uniformly distributed. The expected frequency for each group is
a. 0.333
b. 0.5
c. 150
d. 135
Q5 The test for goodness of fit
a. is always a lower tail test.
b. is always an upper tail test.
c. is always a two-tailed test.
d. can be a lower or an upper tail test.
Q6 The ANOVA procedure is a statistical approach for determining whether or not the means of _____ are equal
a. two samples
b. two or more samples
c. two populations
d. three or more populations
Q7 In the ANOVA, treatments refer to
a. experimental units
b. different levels of a factor
c. the dependent variables
d. statistical applications

Mathematics Homework Help

University of London Solving The First Section of Numerical Analysis Exercise

 

. Recall that, for the Taylor method of order 2, the function T
(2)(t, y) is defined as
T
(2)(t, y) = f(t, y) + h
2
∂f
∂t (t, y) + h
2
∂f
∂y (t, y)f(t, y), (1)
where we have used the chain rule to evaluate the derivative term. We want to derive a RungeKutta method by approximating T
(2)(t, y) in the form
a1f(t, y) + a2f(t + α1, y + β1f(t, y)), (2)
where a1, a2, α1, and β1 are parameters that we must choose.
(a) Taylor’s theorem in two variables implies that we may write
f(t + α1, y + β1f(t, y)) = f(t, y) + α1
∂f
∂t (t, y) + β1f(t, y)
∂f
∂y (t, y) + R1(t + α1, y + β1),
where R1(t + α1, y + β1) is the remainder term. If we want (2) to approximate (1), then we
must choose the parameters a1, a2, α1, and β1 such that the matching condition
f(t, y)+
h
2
∂f
∂t (t, y)+
h
2
f(t, y)
∂f
∂y (t, y) = a1f(t, y)+a2

f(t, y)+α1
∂f
∂t (t, y)+β1f(t, y)
∂f
∂y (t, y)

holds. By matching the coefficients on like-terms (color-coded for your convenience), derive
the three equations that involve the parameters a1, a2, α1, and β1 (but do not solve these
equations). Make sure to distribute a2 into the bracketed expression before matching!
(b) You will notice that there are four unknown parameters but only three equations, which
suggests that we have some flexibility in choosing the parameters. The standard approach
is to choose a2 freely and then solve for the remaining three parameters a1, α1, and β1. Do
so for the choice a2 = 1, and state the name of the Runge-Kutta method from lecture
that corresponds to these parameters.
(c) Now choose a2 =
2
3
and solve for the remaining parameters a1, α1, and β1. This choice of
parameters gives Ralston’s method. (Note: There is another method where you choose
a2 =
3
4
that is also called Ralston’s method, but we will go with the one above.

Mathematics Homework Help

Rowan University Math Homework

 

I’m working on a mathematics multi-part question and need support to help me learn.

Directions: Complete each of the following. Reminder: The “product” of two numbers is the result of multiplying two numbers.

Find the product of 3 and 25.

Use drawings of base-ten blocks to find the product. First represent the problem with the base-ten blocks then show any trading needed to find the product.

What is the product of 3 and 25?

Find the product of 57 and 84.

Draw and label a four-region area model to find the product.

  1. What is the product of 57 and 84?

Find the product of 409 and 76.

  1. Use the partial products algorithm to find the product.
  2. What is the product of 409 and 76?
  3. Find the product of 34 and 28.

Use the distributive property to find the product.

  1. What is the product of 34 and 28?
  2. Find the product of 207 and 95.
  3. Use the standard algorithm for multiplication to find the product.

What is the product of 207 and 95?

Mathematics Homework Help

Grand Canyon University Role of Patient Perception Waiting Time Article Review

 

Search the GCU Library and find two new health care articles that use quantitative research. Do not use articles from a previous assignment, or articles that appear in the Topic Materials or textbook.

Complete an article analysis for each using the “Article Analysis: Part 2” template.

 

Mathematics Homework Help

MAT 101 Harvard University Mathematics for Everyday Life Problems

 

Jill has a swimming pool in her backyard. It is shaped like a rectangle and measures approximately 16.3 feet wide and 26.2 feet long. It is an average of 5 feet deep. During a few hot weeks during the summer, some water evaporates from the pool, and Jill needs to add 8 inches of water to the depth of the pool, using her garden hose. Although her water pressure varies, the water flows through Jill’s garden hose at an average rate of 10 gallons/minute.

  1. Convert the dimensions of the pool to meters. Round all meter measurements to one decimal place (nearest tenth of a meter).
  2. How many liters will Jill need to add to her pool to return the water level to its original depth? How many gallons of water is this? Reminder: Volume = Length x Width x Depth
  3. How long will Jill need to run the hose? Express your answer in hours and minutes.

Since this module focuses on measurement it will be very important that mathematical conversions be clearly demonstrated throughout your problem write-up. For example, if you must convert 28 yards to meters, you must track your calculations with cancellation of units as seen below: