You are designing an experiment to investigate the effect of odor on alertness. In this experiment, 10 subjects will experience the experimental condition (smelling peppermint) and another 10 will be given the control condition (odorless). You know that age significantly affects the sense of smell, with people over the age of 60 showing a decreased ability to identify odors. A total of 20 subjects of all ages (18-80) have signed up for the experiment. How would you assign them to the two groups using a matching technique? Describe your steps.
In: Statistics and Probability
Experiment or an observational, if it is an experiment, identify the independent variable and note any possible
confounding variables.
A social scientist wishes to determine whether there is a relationship between the
attractiveness scores (on a 100-point scale) assigned to college students by a panel
of peers and their scores on a paper-and-pencil test of anxiety.
In: Statistics and Probability
1.Consider a satellite of the earth in a circular orbit of radius R. Let M and m be the mass of the earth and that of the satellite, respectively. Show that the centripetal acceleration of the satellite is aR = -(v^2/R)*(r/r) where v = |v| is the magnitude of the velocity V and r/r is a unit vector in the radial direction.
2.Using Newton's second low of motion and the law of universal gravitation, determine the speed v=|V| and the angular speed w for the circular orbit.
3.For two satellites in two different circular orbits with radii R1 and R2, respectively, prove kepler's second and third laws for this special case.
In: Physics
Step 2: using text editor (WordPad) to create a web page with the following content (you may cut-and-paste):
-----------------------------------------------------------------------------------
Just a screenshoot of the output
Book-O-Rama Catalog Search
Book-O-Rama Catalog Search
Choose Search Type:
Author Title ISBN
Enter Search Term:
-------------------------------------------------------------------------------------
Then save above document to the local directory (C:\temp) and make sure that you saved it in the plain text format (in the “Save as type” popup window, choose “Text Document (*.txt)), name your file “firstpage.txt”.
Step 3: test your web page
You can test your page by doing the following:
1. change the file extension to html. Thus, you should have a file firstpage.html.
2. create a sub director named “firstwebsite” in the web server’s root directory. Your web root may be different from mine. In my machine, the XAMPP is installed at C drive. Thus, the web root will be:
C:\xampp\htdocs\
At the end of this step, the directory structure will be:
C:\xampp\hpdocs\firstwebsite\
3. copy the newly created file “firstpage.html” to the directory shown in the previous line.
4. fire up a web browser and type the following to the URL:
http:\\localhost\firstwebsite\firstpage.html
In: Computer Science
In: Biology
if the liquid did not completely vaporize in the experiment would the apparent molecular weight by larger, smaller or unchanged compared to that determined if the experiment had been properly performed?
In: Chemistry
Consider the four characteristics of a Binomial experiment . Give an example of a binomial experiment in the real world (and how these characteristics are present), and its application to a business research problem
In: Statistics and Probability
The last group of problems will use daily high temperature data for
Santa Fe,
New Mexico during the month of May. For the sake of the assignment,
we will
assume that the dataset is normally distributed. The only
information you’ll need
are the standard deviation (7.92) and the mean (84.31).
1a. Before we dive into the problems, think a little bit about the
normal distribution (and
the normal curve). What are you really finding when you find the
probability of a range
of high temperatures?
1b. How does this relate to your ability to find the probability of a single temperature of
90 degrees F?
1c. Draw the normal curve and label the mean, median and mode. Also label where your
z-score would equal 0, +3 and -3.
1d. What is a z-score?
In: Statistics and Probability
In 2021, the Westgate Construction Company entered into a contract to construct a road for Santa Clara County for $10,000,000. The road was completed in 2023. Information related to the contract is as follows:
| 2021 | 2022 | 2023 | |||||||
| Cost incurred during the year | $ | 2,610,000 | $ | 3,162,000 | $ | 2,230,800 | |||
| Estimated costs to complete as of year-end | 6,390,000 | 2,028,000 | 0 | ||||||
| Billings during the year | 2,100,000 | 3,672,000 | 4,228,000 | ||||||
| Cash collections during the year | 1,850,000 | 3,000,000 | 5,150,000 | ||||||
Westgate recognizes revenue over time according to percentage of completion.
2-a. In the journal below, complete the necessary journal entries for the year 2021 (credit "Various accounts" for construction costs incurred).
2-b. In the journal below, complete the necessary journal entries for the year 2022 (credit "Various accounts" for construction costs incurred).
2-c. In the journal below, complete the necessary journal entries for the year 2023 (credit "Various accounts" for construction costs incurred).
In: Accounting
In 2021, the Westgate Construction Company entered into a contract to construct a road for Santa Clara County for $10,000,000. The road was completed in 2023. Information related to the contract is as follows:

Westgate recognizes revenue over time according to percentage of completion.
Required:
1. Calculate the amount of revenue and gross profit to be recognized in each of the three years.
2. Prepare all necessary journal entries for each of the years (credit “Cash, Materials, etc.” for construction costs incurred).
3. Prepare a partial balance sheet for 2021 and 2022 showing any items related to the contract. Indicate whether any of the amounts shown are contract assets or contract liabilities.
4. Calculate the amount of revenue and gross profit to be recognized in each of the three years assuming the following costs incurred and costs to complete information:

5. Calculate the amount of revenue and gross profit to be recognized in each of the three years assuming the following costs incurred and costs to complete information:

In: Accounting