Mathematics, 25.12.2019 19:31 RyannLambertt7141
Amedical study is to be designed to estimate the population proportion p having a certain disease. how many people should be examined if the researcher wishes to be 95% certain that the error of estimation is below 0.1 when
a. there is no prior knowledge about the value of p?
b. the proportion is known to be about 0.2?
Answers: 3
Mathematics, 21.06.2019 16:30
An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.
Answers: 2
Mathematics, 22.06.2019 00:00
If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0
Answers: 3
Amedical study is to be designed to estimate the population proportion p having a certain disease. h...
Mathematics, 10.09.2019 20:10