Mathematics, 25.07.2021 01:40 nanagardiner08
Question 2
The battery standby duration (in hours) of a new model of cell phone is known to be normally distributed. Ten pieces of such new model of cell phone supplied from the manufacturer are randomly chosen and the actual standby durations are recorded as below:
48.2 47.8 45.6 47.2 49.3
51.2 44.2 45.4 49.2 43.6
(a) Calculate the unbiased estimates of population mean and standard deviation of battery standby duration (in hours) of the new cell phone.
(b) The manufacturer claimed that this new model of cell phone has the mean battery standby duration of longer than 46.5 hours. Test at 1% significance level if this claim is true.
Answers: 1
Mathematics, 21.06.2019 16:00
Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.
Answers: 1
Mathematics, 21.06.2019 17:30
Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?
Answers: 1
Mathematics, 21.06.2019 17:50
When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:
Answers: 1
Question 2
The battery standby duration (in hours) of a new model of cell phone is known to be norm...
Mathematics, 18.12.2020 18:50
Mathematics, 18.12.2020 18:50
History, 18.12.2020 18:50
Mathematics, 18.12.2020 18:50
Mathematics, 18.12.2020 18:50
History, 18.12.2020 18:50
Mathematics, 18.12.2020 18:50
Arts, 18.12.2020 18:50
Physics, 18.12.2020 18:50
Arts, 18.12.2020 18:50
Mathematics, 18.12.2020 18:50
Social Studies, 18.12.2020 18:50
History, 18.12.2020 18:50