Questions
Suppose data were collected on the number of customers that frequented a grocery stores on randomly...

Suppose data were collected on the number of customers that frequented a grocery stores on randomly selected days before and after the governor of the state declared a lock down due to COVID 19. A sample of 6 days before the lockdown were chosen as well as 6 days randomly chosen after the lock down was in place. The number of shoppers each day were as follows:

Before lock down

After lock down

100

60

110

50

115

70

120

90

145

40

130

50

This is interval/ratio data because they are characteristics of the days.

  1. Calculate accountable, unaccountable, and total variation. Show your work.
  2. Eta square is accountable variation divided by total variation. Determine eta square. It is interpreted as the variation in the dependent variable that can be accounted for by the independent variable. Describe eta square in terms of this problem.

In: Statistics and Probability

A scientist claims that pneumonia is associated with weight loss in mice. The table shows the...

A scientist claims that pneumonia is associated with weight loss in mice. The table shows the weights (in grams) of six mice before infection and two days after the infection. At α=0.01 is there enough evidence to support the scientist’s claim? (Assume the samples are random and dependent, and the populations are normally distributed). Hint: We are testing the claim that the weight before pneumonia will be greater than the weight after.

Weight (before) 19.8 20.6 20.3 22.1 23.4 23.6

Weight (after) 18.4 19.6 19.6 20.7 22.2 23.0

a) State the null and alternative hypothesis

b) List the following to two decimal places a. ?̅ b. ??

c) Calculate the test statistic (two decimal places)

d) Calculate the p-value (three decimal places)

e) Reject or fail to reject the null hypothesis? Why?

f) State your conclusion in context of the problem

In: Statistics and Probability

1- You own 600 shares of stock at a price of $3.61 per share. The company...

1- You own 600 shares of stock at a price of $3.61 per share. The company has a 1 for 3 reverse split.

  • How many shares are now owned?
  • What is the new price/share?
  • What is the value of your investment before the split?
  • After the split?
  • 2- You own 5000 shares of stock at a price of $.45 per share. The company has a 1 for 10 reverse split.
    • How many shares are now owned?
    • What is the new price/share?
  • What is the value of your investment before the split?
  • After the split?
  • 3- You own 200 shares of stock at a price of $196.24 per share. The company has a 2 for 1 split.
  • How many shares are now owned?
  • What is the new price/share?
  • What is the value of your investment before the split?
  • After the split?

In: Accounting

After a one-half increase of his current hourly​ wage, a man receives a new hourly wage...

After a one-half increase of his current hourly​ wage, a man receives a new hourly wage of ​$24.02. How much was his hourly wage before the​ increase?

The hourly wage before the increase was $ ______.

Please explain step by step.

In: Finance

In an article titled "Learning To Keep Learning" in the New York Times, dated December 13,...

In an article titled "Learning To Keep Learning" in the New York Times, dated December 13, 2006, Thomas L. Friedman states:


"I listened to this with mixed emotions. Part of me said 'Gosh, wouldn't it be nice to have a government that was so focused on innovation -- instead of one that is basically anti-science.' My other emotion was skepticism. Oh, you know the line: Great Britain dominated the 19th century, America dominated the 20th and now China is going to dominate the 21st. It's game over.


"No question, China has been able to command an impressive effort to end illiteracy, greatly increasing its number of high school grads and new universities. But I still believe it is very hard to produce a culture of innovation in a country that censors [Google] which for me is a proxy for curtailing people's ability to imagine and try anything they want. You can command K-12 education. But you can't command innovation. Rigor and competence, without freedom, will take China only so far. China will have to find a way to loosen up, without losing control, if it wants to be a truly innovative nation." (access through ProQuest Data Base in the Keller library-article 94 of 239 listed therein for that issue)


Comment on how one can stay abreast of changes that will likely affect a career plan. How will we keep up to date in time to make effective career transitions?

In: Operations Management

The collection of system forensics evidence is governed by the general rules of criminal evidence. As...

  • The collection of system forensics evidence is governed by the general rules of criminal evidence. As such, it is subject to a number of well-established and formal steps. As a pervasive form of communication and commerce, e-mail also presents many opportunities to facilitate criminal activities. You have been hired to help investigate a computer crime. Respond the questions given using the scenario below.

A classic phishing attempt. Mark received an e-mail plea asking for his assistance in retrieving funds from an African bank. He provided personal information to help with the transaction. Within a week, he noticed that his bank account was plummeting. He had been phished!

  1. How would you proceed with your investigation? Explain what steps you would take to examine the e-mail messages.
  2. Analyze the information that might be useful to your investigation from looking at the headers of the e-mail messages.
  • Innovation Technologies, a cloud data storage provider, wants to send a mass e-mail message to former customers announcing that, now offers managed IT services. That means Innovation Technologies can remotely monitor and manage a client’s virtual computers and servers 24/7.

Discuss the stipulations of the CAN-SPAM Act. What must Innovation Technologies do to adhere to the act?

If you read all the info is there dude. Forget it i will figure it out.

In: Computer Science

An intensifying oil price war between Saudi Arabia and Russia has created “very painful” market conditions...


An intensifying oil price war between Saudi Arabia and Russia has created “very painful” market conditions for the world’s largest crude oil producers. International benchmark Brent crude traded at $32.97 Thursday, down almost 8%, while U.S. West Texas Intermediate (WTI) stood at $30.40, around 7.8% lower. Oil prices have almost halved since the start of the year.
Last week, Saudi Arabia failed to secure Moscow’s support for deeper output cuts at a meeting of the Organization of the Petroleum Exporting Countries and its allies, known as OPEC plus. OPEC had proposed to deepen cuts by 1.5 million barrels per day and Russia was asked to cut an extra 300,000 bpd.
“There was no point in cutting until after everyone understood how sharply demand could fall. We cannot fight a falling demand situation when there is no clarity about where the bottom (of demand) is,” Pavel Sorokin, the Russia’s deputy energy minister, said.
“It is very easy to get caught in a circle when, by cutting once, you get into an even worse situation: oil prices would shortly bounce back before falling again as demand continued to fall.”
Cooperation between two (Saudi Arabia and Russia) of the world’s three largest oil producers — the third is the United States — appears to be at an end.
2How a Saudi-Russian Standoff Sent Oil Markets Into a Frenzy. 9th March 2020. New York Times
Russia to OPEC - deeper oil cuts won't work. 12th March 2020. Reuter
The losers — and even bigger losers — of an oil price war between Saudi Arabia and Russia. 12th March 2020. CNBC
a) With aid of diagram, explain how the fall in crude oil demand affect the output of OPEC plus members.
b) Discuss why Russia refuse to follow Saudi Arabia’s proposal to cut crude oil production with aid of diagram.

In: Economics

2. Tonka Industries sold inventory to customers on account totaling $90,000 during 2019. The inventory cost...

2. Tonka Industries sold inventory to customers on account totaling $90,000 during 2019. The inventory cost Tonka Industries $42,000.

3. During 2019, Tonka Industries collected $53,600 from customers who previously charged on account.

4. On December 31, 2019, Tonka Industries recorded its uncollectible accounts estimate. Tonka Industries estimates that $1,350 will be uncollectible.

5. On February 19, 2020, Tonka Industries received notification that Jan Levinson, who owes Tonka Industries $900, has filed for bankruptcy. Tonka Industries writes off Ms. Levinson’s account.

7. After invoicing the customer for more than one year, Tonka Industries decides to write-off the $200 accounts receivable balance of David Wallace.

8. Tonka Industries Corporation’s 2020 sales on account totaled $213,600. Inventory sold during 2020 cost Tonka Industries $103,000.

9. During 2020, Tonka Industries collected $80,000 from customers on open accounts receivable.

10. At the end of 2020, Tonka Industries estimates uncollectible accounts of $6,890

Summary Questions:

1. How much uncollectible accounts expense will appear on Tonka Industries Corporation income statement for the year ended December 31, 2019?

2. Calculate the net realizable value of receivables that will appear in the December 31, 2019 balance sheet.

- Accounts Receivable from #2

- Accounts Receivable collected from #3

= Ending Accounts Receivable Balance on December 31, 2019

- Allowance for Doubtful Accounts in #4

= Net Realizable Value of Receivables as of December 31, 2019

3. How much uncollectible accounts expense will appear on Tonka Industries Corporation income statement for the year ended December 31, 2020?

4. Calculate the net realizable value of receivables that will appear in the December 31, 2020 balance sheet. Hint: Remember that Accounts Receivable and Allowance for Doubtful Accounts are both balance sheet accounts, and their balances carry forward from year-to-year.

Beginning Accounts Receivable balance (ending balance on 12/31/19 calculated in #2 above)

+ Sales on account from #8

- Accounts Receivable collected from #9

- Write-offs during 2020 (from #5 and #7)

= Ending Accounts Receivable Balance as of December 31, 2020 ;

Beginning Allowance for Doubtful Accounts balance (ending balance on 12/31/19)

- Write-offs during 2020 (from #5 and #7)

+ 2020 uncollectible accounts estimate in #10

= Ending Allowance for Doubtful Accounts Balance as of December 31, 2020 Accounts Receivable

- Allowance for Doubtful Accounts

= Net Realizable Value of Receivables as of December 31, 2020

In: Accounting

Calculate the pH for each of the following cases in the titration of 50.0mL of 0.160M...

Calculate the pH for each of the following cases in the titration of 50.0mL of 0.160M HClO(aq) with 0.160M KOH(aq).

a) before addition of any KOH

b) after addition of 25.0 mL of KOH

c) after addition of 40.0 mL of KOH

d) after addition of 50.0 mL of KOH

e) after addition of 60.0 mL of KOH

In: Chemistry

Calculate the pH for each of the following cases in the titration of 50.0ml of 0.110M....

Calculate the pH for each of the following cases in the titration of 50.0ml of 0.110M. HCLO with 0.110M KOH. The ionization constant for HCLO= 4.0*10^-8. a) before adding KOH b) after adding 25ml KOH c) after adding 30ml KOH d) after adding 50ml KOH e) after adding 60ml KOH

In: Chemistry