Mathematics, 01.10.2019 17:20 sierratellman
Amanufacturer claims that the calling range (in feet) of its 900-mhz cordless telephone is greater than that of its leading competitor. a sample of 6 phones from the manufacturer had a mean range of 1200 feet with a standard deviation of 43 feet. a sample of 16 similar phones from its competitor had a mean range of 1130 feet with a standard deviation of 41 feet. do the results support the manufacturer's claim? let μ1 be the true mean range of the manufacturer's cordless telephone and μ2 be the true mean range of the competitor's cordless telephone. use a significance level of α=0.1 for the test. assume that the population variances are equal and that the two populations are normally distributed.
Answers: 3
Mathematics, 21.06.2019 12:30
On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 104 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 105 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.
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Mathematics, 21.06.2019 13:30
Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?
Answers: 1
Mathematics, 21.06.2019 14:00
Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills
Answers: 2
Mathematics, 21.06.2019 20:30
East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy
Answers: 1
Amanufacturer claims that the calling range (in feet) of its 900-mhz cordless telephone is greater t...
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