subject

SAT, 26.11.2021 21:50 ayoismeisalex

A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1500 hours. A homeowner selects 40 bulbs and finds the mean lifetime to be 1480 hours with a population standard deviation of 80 hours. Test the manufacturer’s claim. Use alpha equal to 0. 5.

ansver

Answers: 2

Show answers

Other questions on the subject: SAT

SAT, 23.06.2019 11:10, amastar

If you find yourself sharing the road with an aggressive driver, you should: a. attempt to get the driver off the road b. give the driver extra space c. make eye contact and smile

Answers: 1

SAT, 24.06.2019 03:00, ayeheavymetal

Generally, investment philosophy is dividend into one category: conservative.

Answers: 1

SAT, 27.06.2019 11:30, claudr03

Case # 51173878 weighs 814 pounds; case # 51173981 weighs 803 pounds; case # 51174058 weighs 817 pounds; case 51174178 weighs 815 pounds; case # 51174248 weighs 817 pounds; case # 51174495 weighs 781 pounds; case # 51174577 weighs 828 pounds. what are the case #'s of the two cases that weigh the same amount?

Answers: 1

SAT, 02.07.2019 11:00, masonprice

Compare the earth's crust and core. i don't know the answer

Answers: 2

You know the right answer?

A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1500 hours. A homeowner sel...

Questions in other subjects:

Konu

Mathematics, 13.03.2020 17:32

Find the total charge on a circular disk defined by r ≤ a and z = 0 if:a)rhos= rhoso cos(φ) (C/m2) b)rhos= rhoso sin2(φ) (C/m2) c)rhos= rhoso e−r (C/m2) d)rhos= rhoso e−r sin2(φ) (...

Konu

English, 13.03.2020 17:32

The Story of an Hour Kate Chopin 1 Knowing that Mrs. Mallard was afflicted with a heart trouble, great care was taken to break to her (1)as gently as possible th...

Konu

Biology, 13.03.2020 17:32

Emily is studying how a person's breathing rate is affected by aerobic and anaerobic exercise. To do this, she measures the breathing rate of her test subject while the subject eng...

Konu

Mathematics, 13.03.2020 17:32

Drug use among college students in the United States was particularly heavy during the 1970s. Reporting on a study of drinking and drug use among college students in the United Sta...

Konu

Engineering, 13.03.2020 17:32

For some transformation having kinetics that obey the Avrami equation (Equation 11.17), the parameter n is known to have a value of 2.1. If, after 112 s, the reaction is 50% comple...

Konu

Business, 13.03.2020 17:32

Assume you have accepted a job offer and will shortly begin working in your first professional position. The firm provides a very competitive salary and benefit package. Your atten...

Konu

Computers and Technology, 13.03.2020 17:33

JPG uses a(n) , made exclusively for digital photos, to reduce file size. a. lossy compression b. minimized compression c. adjustable compression d. reduction compression...

Konu

Arts, 13.03.2020 17:33

Roosevelt launched the Second New Deal because of the failure of his initial policies to pull the country out of the Depression and because of the growing popular clamor for greate...

Konu

Computers and Technology, 13.03.2020 17:33

What is the intangible creative work that is embodied in physical form and includes trademarks and patents? Group of answer choices Intellectual software Trademark property Intelle...

Konu

Health, 13.03.2020 17:33

Healing by primary intention is expected when the edges of a clean surgical incision are sutured or stapled together, tissue loss is minimal or absent, and the wound is uncontamina...

More questions: SAT Another questions