A researcher is concerned that the true

population mean could be as much as 4.8 greater

than the accepted population mean, but the

researchers hypothesis test fails to find a

significant difference. The power for this study

was 0.5, the researcher probably should

A) accept the outcome and move on

B) repeat the experiment with a smaller α

C) repeat the experiment with a larger α

D) repeat the experiment with a larger n

E) repeat the experiment and hope that the next sample

mean is significantly different than the hypothesized

mean.

Failing to observe a treatment affect

for Rogaine, when in reality Rogaine reduces

hair loss, would be...

A) impossible

B) an error with probability equal to α

C) an error with probability equal to β

D) an error with probability equal to 1-β

Experiment IV: Effect of pH on the Rate of Enzyme Reaction

6. In this experiment, was the enzyme denatured or just slowed down at any of the pH values tested? What is the evidence?

Materials for Experiment IV

Five test tubes

Test tube rack

Disposable pipettes

Potato extract

Deionized water

Water bath, 37 degrees Celsius (°C)

0.1 molar (M) sodium hydroxide (NaOH)

0.1 M hydrochloric acid (HCl)

pH paper

Procedure for Experiment IV

Five test tubes were taken and labeled A to E.

According to table 7.4, drops of 0.1 M hydrochloric acid (HCI), 0.1 molar (M) sodium hydroxide (NaOH), and deionized water were added to five test tubes.

Table 7.4

The pH for each of the five test tubes using pH paper was recorded.

Later, 2 mL deionized water, eight drops of catechol, and eight drops of the potato extract were added into all five test tubes.

Each test tube was carefully mixed and placed into a 37 °C water bath.

After 15 minutes, a change of color was supposed to happen and had to be rated on a scale of 1–10 with 10 being the darkest.

The data was recorded in Table 4 of the Enzyme Lab Worksheet and presented to the class.

A probability experiment is conducted in which the sample space of the experiment is {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}​,

event F={4, 5, 6, 7, 8}​, and event G={8, 9, 10, 11}. Assume that each outcome is equally likely. List the outcomes in F or G. Find P(F or G) by counting the number of outcomes in F or G. Determine P(F or G) using the general addition rule.

List the outcomes in F or G. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

A. F or G =_________

​(Use a comma to separate answers as​ needed.)

B. F or G =_________

Consider the field experiment with politicians that we discussed in the lecture. The experiment is based on a modified dictator game. In Treatment 1 (i.e. T1), nature plays with high probability (equal to 0.8) and randomly assigns the endowment either to the politician-dictator or to the recipient. The politician--dictator plays with complementary probability (and knows, when making a decision, that this decision will be implemented); in contrast, a recipient who receives zero (or the full endowment), will not know whether the dictator or nature is responsible. In Treatment 2 (i.e. T2), the probability that nature intervenes is very low (equal to 0.1). Final results are published and seen by all participants in the room.

Suppose a politician-dictator wants to keep 90% of the given endowment and give 10% of the endowment to the recipient. She knows there is a norm of equal-sharing and not giving 50% would cost her a social image loss. Is she still able to give 10% of the endowment without revealing her identity to anyone in the experiment?

a. You are conducting a lab experiment on the promoter regions of genes. In one experiment you apply heat to two sections of DNA that you believe could be promoter regions. One region unwinds at 80 degrees C and the other unwinds at 60 degrees C. Which of the two strands contain the promoter? Explain.

b. Apply your knowledge of genetics to explain what would happen in a nucleus if histones were negatively charged.

HOW TO FIND FAULT IN UNDERGROUND CABLES

NAME ALL THE DEVICES

NAME ALL THE PROCESS

NAME ANY DEVICE THAT CAN BE EASILY MADE BY A STUDENT

On December 20, 2016, a company pays $40,000 for a stock, classified as a trading security. On December 31, 2016, the company’s year-end, the stock has a market value of $38,000. The company sells the stock in 2017 for $43,000.

On its income statement, the company reports:

a: no gain or loss in 2016, and gain of $5,000 in 2017

b. A gain of $3,000 in 2016, and no gain or loss in 2017

c.No gain or loss in 2016, and gain of 3,000 in 2017.

d. A loss of $2,000 in 2016, and a gain of $5,000 in 2017.

Problem 2:

Ignore GST for this problem. As at 30 June 2016, the end of its financial year, Oscar Ltd reported the following information on its balance sheet:

During the next financial year, the business had the following totals related to receivables. You may assume that all events were correctly journalised and posted.

Required:

(a)   Enter the 1 July 2016 balances in Accounts Receivable and Allowance for Doubtful Accounts in “T” accounts. Re-create the postings for the year to the two “T” accounts, cross referencing with the opposite account name, e.g., for a cash collection from a customer on account, the debit posting to the Cash account would have a cross reference to Accounts Receivable on the left of the dollar figure.

(b)   Prepare the adjusting journal entry required on 30 June 2017, assuming that it is estimated that the recoverable amount of accounts receivable on that date is $1,250,000.

     (c)    Use a residual analysis to justify the AJE you prepared in (b) above.