subject
Mathematics, 17.08.2021 20:40 damiangibson2

Let X equal to the IQ of a randomly selected American. X following a normal distribution of unknow variance. A random 25 people were selected from street. The average IQ of these people is = 102, the variance of the sample is 25. a. Construct a two-sided 95% confidence interval for the mean of the population
b. If someone claim that the national mean(population) IQ is 100 with the same aforementioned variance. Does your data support this claim? Show your procedure

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 19:10, KaliBratz
Alogical argument that is presented in graphical form using boxes and arrows is called?
Answers: 1
image
Mathematics, 21.06.2019 20:10, snicklegirlp4isqr
The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.
Answers: 1
image
Mathematics, 21.06.2019 21:30, hammackkatelyn60
Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter
Answers: 1
image
Mathematics, 21.06.2019 23:30, ramandeep
Write a similarity statement for the similar triangles. afgh ~ a
Answers: 1
You know the right answer?
Let X equal to the IQ of a randomly selected American. X following a normal distribution of unknow v...

Questions in other subjects: