Mathematics, 10.04.2020 16:50 Allybubbs
The standard IQ test is designed so that the mean is 100 and the standard deviation is 15 for the population of all adults.
We wish to find the sample size necessary to estimate the mean IQ score of statistics students.
Suppose we want to be 90 % confident that our sample mean is within 2 IQ points of the true mean.
Assume then that sigma is 15 and determine the required sample size.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 15:00
What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary
Answers: 1
Mathematics, 21.06.2019 15:00
Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.
Answers: 2
Mathematics, 21.06.2019 20:00
For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.
Answers: 1
Mathematics, 21.06.2019 21:30
Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =
Answers: 3
You know the right answer?
The standard IQ test is designed so that the mean is 100 and the standard deviation is 15 for the po...
Questions
Biology, 03.08.2019 06:00
Biology, 03.08.2019 06:00
Mathematics, 03.08.2019 06:00
Social Studies, 03.08.2019 06:00
Social Studies, 03.08.2019 06:00
History, 03.08.2019 06:00
Business, 03.08.2019 06:00
Mathematics, 03.08.2019 06:00
Business, 03.08.2019 06:00
Mathematics, 03.08.2019 06:00
History, 03.08.2019 06:00
