Mathematics, 14.07.2020 02:01 njimenez1231
Could you please check my work? Scenario: A study found that citizens spend on average $1950 per year on groceries with a standard deviation of $400. Assume that the variable is normally distributed. --> Find the probability that a sample of 50 citizens will have a mean less than $2000. z-score = (2000-1950)/[(400)/(√50)] = 50/56.569 = 0.88 probability = 0.3106 (according to z-table) 0.5 - 0.3106 = 0.1894 or 18.94% (I'm always confused about whether I should add or subtract from the 0.5, as I'm dealing with a half-distribution z-table)
Answers: 2
Mathematics, 21.06.2019 17:30
If you apply the below transformations to the square root parent function, f(x) = vx, what is the equation of the new function? • shift 12 units right. • shift seven units down.
Answers: 1
Mathematics, 21.06.2019 21:30
The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?
Answers: 3
Mathematics, 21.06.2019 22:30
The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.
Answers: 2
Could you please check my work? Scenario: A study found that citizens spend on average $1950 per yea...
History, 31.01.2020 02:49
English, 31.01.2020 02:49
Mathematics, 31.01.2020 02:49
Health, 31.01.2020 02:49
Biology, 31.01.2020 02:49
Physics, 31.01.2020 02:49
Mathematics, 31.01.2020 02:49
Mathematics, 31.01.2020 02:49
Mathematics, 31.01.2020 02:49
History, 31.01.2020 02:49