Mathematics, 12.03.2020 22:02 arianawelsh123l
Suppose that true average price of a beer at professional sporting events in the US is $6. You attend 34 events and find an average price of $6.7 and the standard deviation is $0.4. Find the standard error for your sample. Answer to four decimal places.
Answers: 3
Mathematics, 21.06.2019 14:10
Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?
Answers: 2
Mathematics, 21.06.2019 18:30
Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.
Answers: 3
Mathematics, 21.06.2019 19:40
It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
Answers: 1
Mathematics, 21.06.2019 20:00
True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1
Answers: 2
Suppose that true average price of a beer at professional sporting events in the US is $6. You atten...
Mathematics, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
Computers and Technology, 20.05.2021 14:00
Health, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
English, 20.05.2021 14:00
Biology, 20.05.2021 14:00
Mathematics, 20.05.2021 14:00
History, 20.05.2021 14:00
English, 20.05.2021 14:00
Geography, 20.05.2021 14:00