Using diaries for many week, a study on the lifestyles of visually impaired students was conducted The student kept track of many lifestyle variable including how many hours of sleep obtained on a typical day Researchers found that visually impaired students averaged 92 hours of sleep with a standard deviation of 245 hours Assume that the number of hours of sleep for these visually impaired students are normally distributed
a) What is the probability that a visually impaired student gets at most 63 hours of sleep?
b) What is the probability that a impaired student gets between 69 and 859 hours of sleep?
c) What is the probability that a visually impaired student gets at least 73 hours of sleep?
d) What is the sleep time that cuts off the top 113% of sleep hours?
e) If 200 visually impaired students were studied, how many students would you expect to have sleep time of more than 859 hours?
f) A school district wants to give additional assistance to visually impaired students with sleep times at the first quartile and lower What would be the maximum sleep time to be recommended for additional assistance?
The residents of the town Ectenia all love economics, and the mayor proposes building an economics museum. The museum has a fixed cost of $2,400,000 and no variable costs...Mar 27 2020
You are offered $5000 (in nominal dollars) 3 years from now in exchange for a loan of $3500 today. You expect inflation to run 3.7% per year, and your real hurdle rate is...Jul 06 2021
What are the key factors to consider when opening a checking account? Discuss the advantages and disadvantages of individual versus joint accounts.2. What are your legal ...May 17 2020
Choose the option that is correctly expressed. Then compare your responses with the key at the end of the book.Domino's offered (a) 5 dollars, (b) $5, (c) $5 dollars off ...Aug 23 2021
DeKalb Hospital, a large not-for-profit organization, has adopted an accounting policy that does not imply a time restriction on gifts of long-lived assets. For each of t...Jul 16 2020
Consider the neutralization reaction between aluminium hydroxide and nitric acid. What are the spectator ions? Select one: O a. protons and hydroxide ions O b. protons an...May 15 2021
Bid calculations. The Shepard Company is to submit a bid on the production of 10,000 ceramic salad bowls. It is estimated that the cost of materials will be $7,500 and di...Aug 21 2020
Austin Company uses a job order cost accounting system. Thecompany's executives estimated that direct labor would be$6,000,000 (600,000 hours at $10/hour) and that factor...May 24 2021
Baker Oats had an asset turnover of 1.6 times per year. a. If the return on total assets (investment) was 12 percent, what was Baker's profit margin? (Input your answer a...Aug 16 2020
Suppose that the world price of tin is above the target (ceiling) price that is defined by an international commodity agreement. To move the world price toward the target...Nov 23 2019