PROBLEM 5 The travel-to-work time for residents of the 25 largest cities in the United States is reported in the 2003 Information Please Almanac. Suppose that a preliminary simple random sample of residents of San Francisco is used to develop a planning value of 6 minutes for the population standard deviation. a. If we want to estimate the population mean travel-to-work for San Francisco residents with a margin of error of 2 minutes, what sample size should be used? Assume 99% confidence. O b. If we want to estimate the population mean travel-to-work for San Francisco residents with a margin of error of 30 seconds, what sample size should be used? Assume 95% confidence. 2.

PROBLEM 5 The travel-to-work time for residents of the 25 largest cities in the United States is reported in the 2003 Information Please Almanac. Suppose that a preliminary simple random sample of residents of San Francisco is used to develop a planning value of 6 minutes for the population standard deviation. a. If we want to estimate the population mean travel-to-work for San Francisco residents with a margin of error of 2 minutes, what sample size should be used? Assume 99% confidence. O b. If we want to estimate the population mean travel-to-work for San Francisco residents with a margin of error of 30 seconds, what sample size should be used? Assume 95% confidence. 2.

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter6: Linear Systems

Section6.8: Linear Programming

Problem 5SC: If during the following year it is predicted that each comedy skit will generate 30 thousand and...

See similar textbooks

Similar questions

If during the following year it is predicted that each comedy skit will generate 30 thousand and each musical number 20 thousand, find the maximum income for the year. A television program director must schedule comedy skits and musical numbers for prime-time variety shows. Each comedy skit requires 2 hours of rehearsal time, costs 3000, and brings in 20,000 from the shows sponsors. Each musical number requires 1 hour of rehearsal time, costs 6000, and generates 12,000. If 250 hours are available for rehearsal and 600,000 is budgeted for comedy and music, how many segments of each type should be produced to maximize income? Find the maximum income.
According to projections through the year 2030, the population y of the given state in year x is approximated by State A: −7x+y=11,500 State B: −135x+y=7,000 where x=0 corresponds to the year 2000 and y is in thousands. In what year do the two states have the same population? The two states will have the same population in the year Blank.
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien T-shirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once sold 200 shirts in a week at $6 per shirt, but Ep Sig treasurer Julius has solid research indicating that it is possible to sell 400 per week at $2 per shirt. (a) On the basis of this information, construct a linear demand equation for Yoda vs. Alien T-shirts. Hence obtain the weekly revenue R as a function of the unit price x. R(x) = (b) The university administration charges the fraternities a weekly fee of $300 for use of the student center. Write down the weekly profit P as a function of the unit price x. HINT [See Example 4.] P(x) = Determine how much the fraternities should charge to obtain the largest possible weekly profit. x = $ per T-shirt What is the largest possible weekly profit? $
In laparoscopic surgery, a video camera and several thin instruments are inserted into the patient's abdominal cavity. The surgeon uses the image from the video camera positioned inside the patient's body to perform the procedure by manipulating the instruments that have been insert ed. The Top Gun Laparoscopic Skills and Suturing Program was developed to help surgeons develop the skill set necessary for laparoscopic surgery. Because of the similarity in many of the skills involved in video games and laparoscopic surgery, it was hypothesized that surgeons with greater prior video game experience might acquire the skills required in laparoscopic surgery more easily. Thirty-three surgeons partici pated in the study and were classified into the three categories, never used, under three hours, and more than three hours depending on the daily number of hours they played video games at the height of their video game use. They also performed Top Gun drills and received a score based on the…
Mat 122 Project BThe National Business Machine Corporation manufactures two types of faxmachines, model A and model B. Each model A costs $200 to make and eachmodel B costs $300 to make. The profits are $25 for each model A fax machineand $40 for each model B fax machine. The total number of fax machinesproduced each month cannot exceed 2500 and the total earmarked formanufacturing costs cannot exceed $600,000. How many fax machines of eachmodel should the National Business Machine corporation make to maximizeprofits?
Formulate an IP that can be used to maximize Highland’s profit. How much more profit could be attained if Highland rented another 50 sq. ft. of floor space? How much should Highland be willing to pay for this extra footage? How much more profit could be attained if marketing changed their requirement so that only 40% of all appliances in stock be radios (keeping the floor space at 200 sq. ft.)? How much more profit could be attained if Highland was willing to have $3500 worth of capital tied-up (keeping the floor space at 200 sq. ft. and the marketing requirement at 40%)? How should Highland decide if it is worthwhile to increase this value?
Activity 10 (4) Please provide detailed solution with explanation and justification asap to get a upvote for Each part Please
In 2005, there were 14,000 students at college A, with a projected enrollment increase of 500 students per year. In the same year, there were 19,000 students at college B, with a projected enrollment decline of 750 students per year. According to these projections, when will the colleges have the same enrollment? What will be the enrollment in each college at that time? In the year ___ enter your response here,the enrollment at both colleges will be the same.
The principle of redundancy is used when system reliability is improved through redundant or backup components. Assume that a student's alarm clock has a 8.2% daily failure rate. Complete parts (a) through (d) below.
The River is a literary magazine published by the English Department at Tech. It has a 70-year history and enjoys an excellent reputation for providing a literary outlet for aspiring Appalachian writers in particular. However, its sales, mostly through independent bookstores and college libraries, have never been very large. Several years ago, the magazine’s advisory board decided to create a Web site and post the bi-monthly issues online for free access. Due to poor economic conditions and state budget cuts, Tech recently withdrew funding for the magazine, and in order to make up for this financial loss, the magazine’s staff has decided to try to sell advertising (especially to local and regional businesses) on the magazine’s Web site. In order to sell advertising, the magazine’s staff would like to be able to provide potential advertisers with a forecast of the number of “visits” the Web site might receive in future months. Following is the number of monthly visits the Web site has…
A manufacturer of lightweight mountain tents makes a standard model and an expeditionmodel for national distribution. Each standard tent requires 1 labour hour from the cuttingdepartment and 3 labour hours from the assembly department. Each expedition tent requires 2labour hours from the cutting department and 4 labour hours from the assembly department.The maximum labour hours available per day in the cutting department and the assemblydepartment are 32 and 84 respectively. If the company makes a profit of E50 on each standardtent and E80 on each expedition tent, use the graphical method to determine how many tentsof each type should be manufactured each day to maximize the total daily profit?
Parts a, b & c -- please include all work x y5 108 2014 2819 3222 3326 34