Aresearcher is investigating alertness. she asked 20 subjects who habitually had either 6, 7, 8, or 9 hours of sleep every night to complete the stanford sleepiness scale (sss). the sss is a measure of alertness and simply requires the subject to rate his or her level of alertness by responding with a number between 1 (very alert) and 7 (struggling to stay awake). each subject did this in the morning, the afternoon, the evening, and at night. the subject was also asked to self-identify as either a night-person or a morning-person. it is safe to assume that none of the subjects have unusual hours, such as getting up at 10 at night.
in the space below, list the variables; state how many categories each variable has (if more than six, simply write "several"); list the categories (if there are more than six categories, simply list six possible categories - you may have to guess what the categories may be - don't worry if you have the correct units - that isn't part of the question); and state the scale of measurement for each variable (i. e., nominal, ordinal, interval, ratio). put each variable on a separate row.

variable # of categories
categories scale

Consider the market for gasoline. suppose that, in a competitive market without government regulations, the equilibrium price of gasoline is $3.00 per gallon, and employees at gas stations earn $17.50 per hour. complete the following table by indicating whether each of the statements is an example of a price ceiling or a price floor and whether it results in a shortage or a surplus or has no effect on the price and quantity that prevail in the market. statement price control effect the government has instituted a legal minimum price of $3.40 per gallon for gasoline. the government prohibits gas stations from selling gasoline for more than $3.40 per gallon. due to new regulations, gas stations that would like to pay better wages in order to hire more workers are prohibited from paying more than $14.50 per hour.

At a student café, there are equal numbers of two types of customers with the following values. the café owner cannot distinguish between the two types of students because many students without early classes arrive early anyway (i.e., she cannot price-discriminate). students with early classes students without early classes coffee 70 60 banana 51 101 the marginal cost of coffee is 10 and the marginal cost of a banana is 40. the café owner is considering three pricing strategies: 1. mixed bundling: price bundle of coffee and a banana for 161, or just a coffee for 70. 2. price separately: offer coffee at 60, price a banana at 101. 3. bundle only: coffee and a banana for 121. do not offer goods separately. assume that if the price of an item or bundle is no more than exactly equal to a student's willingness to pay, then the student will purchase the item or bundle. for simplicity, assume there is just one student with an early class, and one student without an early class. price strategy revenue from pricing strategy cost from pricing strategy profit from pricing strategy 1. mixed bundling $ $ $ 2. price separately $ $ $ 3. bundle only $ $ $ pricing strategy yields the highest profit for the café owner.

What is the correct percentage of texas teachers charged with ethics violations each year?