Mathematics, 04.12.2019 06:31, Arealbot
While her husband spent 2½ hours picking out new speakers, a statistician decided to determine whether the percent of men who enjoy shopping for electronic equipment is higher than the percent of women who enjoy shopping for electronic equipment. the population was saturday afternoon shoppers. out of 66 men, 23 said they enjoyed the activity. eight of the 23 women surveyed claimed to enjoy the activity. interpret the results of the survey. conduct a hypothesis test at the 5% level. let the subscript m = men and w = women.
state the distribution to use for the test. (round your answers to four decimal places.)
Answers: 3
Mathematics, 21.06.2019 22:00, lalanduni
Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)
Answers: 1
Mathematics, 21.06.2019 23:00, noahdwilke
36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)
Answers: 1
Mathematics, 21.06.2019 23:30, bbby2
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
While her husband spent 2½ hours picking out new speakers, a statistician decided to determine wheth...
Computers and Technology, 27.09.2019 21:00
Computers and Technology, 27.09.2019 21:00
Computers and Technology, 27.09.2019 21:00
Computers and Technology, 27.09.2019 21:00
Computers and Technology, 27.09.2019 21:00
Computers and Technology, 27.09.2019 21:00
Computers and Technology, 27.09.2019 21:00