Municipal Electric is an electric utility that faces demand curve D1 during night hours (2300–0700) and demand D2 during daytime hours (0700–2300). Municipal Electric is required to provide service to satisfy demand, but can vary prices in an effort to curtail demand and ensure that the supply grid is not overtaxed. Municipal Electric is the monopoly provider of electricity. The demand and marginal revenue functions are: D1 : P1 = 4 − 0.001Q1 MR1 = 4 − 0.002Q1 D2 : P2 = 16 − 0.001Q2 MR2 = 16 − 0.002Q2 where Q = MW delivered per hour. The marginal cost of generating and delivering electricity depends on the amount delivered: MC = 1 + 0.004Q (a) In order to ensure grid reliability, the utility’s management uses peak-load pricing. This scheme raises prices during high-demand periods to ensure that demand does not exceed grid capacity. Calculate the appropriate prices to charge (P1 and P2) and determine the amount of electricity delivered, Q1 and Q2. (b) Explain how switching from a uniform pricing scheme to a peak load pricing scheme affects the market. Be as precise as you can about the differences between uniform and peak-load pricing. Use no less than one and no more than three complete sentences.

Drosophila females heterozygous for three recessive mutations, a, b, and c were crossed to males homozygous for all three mutations. The cross yielded the following results.

Phenotype Number

A B C - 75

A B c - 348

A b c - 96

a B C - 110

a b C - 306

a b c - 65

Determine the gene order.

Determine the distance between genes .

Make a genetic map of the genes.

A study demonstrated "choice overload" by comparing sales between two jam sellers. One seller offered only three varieties. The other sellers offered these varieties plus a dozen more. The seller with only three varieties sold even more jam than the other. What consequence of rational choice does this experiment violate, which proves that a cognitive bias is influencing choices? Explain in at most two sentences.

List the factors which cause the difference between accounting profit and taxable profits.

In terms of accounting for taxation, what would be the consequence If a certain expense is taxed on cash rather accrual basis? Don’t write more than 6 lines.

Write the three reasons for recognizing deferred tax.

What are the three requirements for IAS 12 in terms of deferred tax liabilities? Don’t write more than 8 lines.

Children of three ages are asked to indicate their preference for three photographs of
adults. Do the data suggest that there is a significant relationship between age and
photograph preference? What is wrong with this study? [Chi-Square = 29.6, with 4
df: ? < 0.05].

The development of accounting information systems is much more than the software for ledger posting and report formation. It also involves establishing procedures for capturing data and distribution, as well as analysis of accounting information. In an accounting information system, there are three basic entities that need to be considered when specifying a system, namely, transactions, account and processing period. Outline the relationship between these three entities.

(Outline a range of considerations for developing accounting system specifications).

Many organizations use information technology vendors to develop company solutions. Determine at least three (3) challenges associated with using vendors. Analyze the relationship between competitive advantage and vendor relationship management overall.

Specify at least three (3) approaches for marketing IT’s value. Propose (1) method for implementing each approach within an organization. Provide one (1) example of each approach to support your answer.

(please provide detailed solution with formula and figures)

the researcher considers using regression analysis to establish a linear relationship between the two variables – hours worked per week and yearly income. a) What is the dependent variable and independent variable for this analysis? Why? b) Use an appropriate plot to investigate the relationship between the two variables. Display the plot. On the same plot, fit a linear trend line including the equation and the coefficient of determination R2 . c) Estimate a simple linear regression model and present the estimated linear equation. Display the regression summary table and interpret the intercept and slope coefficient estimates of the linear model. d) Display and interpret the value of the coefficient of determination, R-squared (R2 ).

A researcher wonders if people who listen to music via ear buds have a different hearing loss compared to the general population. On a standard hearing test, the mean (μ) is 24.75. Higher values indicate better hearing; lower values indicate worse hearing. The researcher gave this same test to a random sample of 10 individuals who regularly use ear buds. Their data on the hearing test is below. Calculate descriptive statistics for the data and use the five steps of hypothesis testing to determine if using ear buds significantly changes hearing.

24, 26, 27, 21, 28, 30, 30, 35, 29, 20 -

Compute the mean and standard deviation.

Mean = 27 SD = 4.4969 Step

1: What are your null and alternative hypotheses?

Null hypothesis = There is no significant difference in hearing loss between individuals who listen to music via earbuds and the general population. Alternative hypothesis = There is a significant difference in loss between individuals who listen to music via earbuds and the general population.

Step 2: What is the alpha level, will you run a one-tail or two-tail test? Why? What is the t critical value? (One point) The alpha level is 0.05. We will run a two tailed test because the alternative hypothesis is not directional. The critical t-value is 2.262.

Step 3: Your data is already collected but obtain the test statistic! Begin by computing the estimated population variance. Population variance = 18.2. T obtained value = 1.5822.

Continue by computing the estimated standard error of the mean. Standard error of mean = 1.422. -

Finally, compute a t test. What is your obtained value? (One point). T obtained value = 1.5822.

Step 4: Make your decision: Do you reject, or fail to reject the null hypothesis? (One point). We fail to reject the null hypothesis.

QUESTION

Step 5: How would your study read in a scientific article?

Create a message encoder/decoder.

PLEASE USE BASIC PYTHON METHODS/FUNCTIONS.

• The user enters a message that could only include alphabetic letters and space.
  • There are 26 alphabetic letters. Consider space the 27^th letter.
• The user then enters a shift code that should be an integer between -26 and 26.
• The application will show the encoded/decoded message based on the shift code entered.
  • If you encode a message, each letter in the message will be moved forward through the alphabet according to your shift code.
    • For example, if the message is “abcd” and the shift code is 1, the encoded message will be “bcde”.
  • If you decode a message, each letter in the message will be moved backward through the alphabet according to your shift code.
    • For example, if the message is “abcd” and the shift code is 1, the decoded message will be “ abc”.
• The application should display the following menu:
  • 1. Encode a message
  • 2. Decode a message
  • 3. Quit
• If the user selects 1, he/she should be able to type in a message and then enter a shift code. The application should then display the encoded message.
• If the user selects 2, he/she should be able to type in a message and then enter a shift code. The application should then display the decoded message.
• After the user has encoded/decoded a message, the menu should be displayed again until the user selects 3.
  • When the user selects from the menu, if he/she enters anything but 1, 2, or 3, the application should tell the user his/her selection is invalid.
  • If the user enters a shift code greater than or equal to 27 (or less than or equal to -27), the application should tell the user to enter a valid shift code (between -26 and 26).

Please see the next page an example of the output.

• I first entered an invalid selection (i.e., ‘a’).
• Then, while trying to encode a message, I entered an invalid shift code (i.e., 30).
• Then, I decoded a message.
• Finally, I stopped (entering 3).