subject
Mathematics, 30.10.2020 19:10 mirandatorres2601

The ages of a group of 155 randomly selected adult females have a standard deviation of 17.9 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so leto = 17 9 years for the sample size calculation. How many female statistics
student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 90% confidence that the sample
mean is within one-half year of the population mean Does it seem reasonable to assume that the ages of female statistics students have less variation
than ages of females in the general population?
The required sample size is
(Round up to the nearest whole number as needed)

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.
Answers: 1
question
Mathematics, 21.06.2019 17:20
Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?
Answers: 3
question
Mathematics, 22.06.2019 00:30
1.3.25 question suppose 40​% of all voters voted for a particular candidate. to simulate exit polls regarding whether or not voters voted for this​ candidate, five random samples of size 1010 and five random samples of size 10001000 have been generated using technology using a population proportion of 0.400.40​, with the accompanying results. complete parts a through c below. click the icon to view the simulation results. a. observe how the sample proportions of successes vary around 0.400.40. simulation compared to sample prop simulation compared to sample prop 1 ▾ 6 ▾ greater than 0.40 less than 0.40 equal to 0.40 2 ▾ less than 0.40 greater than 0.40 equal to 0.40 7 ▾ greater than 0.40 less than 0.40 equal to 0.40 3 ▾ greater than 0.40 less than 0.40 equal to 0.40 8 ▾ equal to 0.40 greater than 0.40 less than 0.40 4 ▾ greater than 0.40 equal to 0.40 less than 0.40 9 ▾ less than 0.40 greater than 0.40 equal to 0.40 5 ▾ equal to 0.40 less than 0.40 greater than 0.40 10 ▾ equal to 0.40 greater than 0.40 less than 0.40 click to select your answer(s) and then click check answer. 2 parts remaining clear all check answer
Answers: 3
question
Mathematics, 22.06.2019 04:00
The school board administered a math test to all students in grade 66 at high achievers charter school and determined that 15\%15% of them were below grade level in math. based on this data, which of the following conclusions are valid? choose 1 choose 1
Answers: 2
You know the right answer?
The ages of a group of 155 randomly selected adult females have a standard deviation of 17.9 years....
Questions
question
Mathematics, 08.11.2019 11:31
question
Mathematics, 08.11.2019 11:31
question
History, 08.11.2019 11:31
Questions on the website: 13722366