![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 14:00, hadwell34
1 a) A random sample of 25 was drawn from a normal distribution with a standard deviation of 5. The sample mean is 80. Determine the 95% confidence interval estimate of the population mean. b) Repeat part (a) with a sample size of 100.c) Repeat part (a) with a sample size of 400.d) Describe what happens to the confidence interval estimate when the sample size increases.2 a) The mean of a sample of 25 was calculated as ¯x=500. The sample was randomly drawn from a population with a standard deviation of 15. Estimate the population mean with 99% confidence. b) Repeat part (a) changing the population standard deviation to 30.c) Repeat part (a) changing to the population standard deviation to 60.d) Describe what happens to the confidence interval estimate when the standard deviation is increased.
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00, arizmendiivan713
What is the frequency of the sinusoidal graph?
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00, mimithurmond03
Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:40, Ghhkgu5120
If /is a line of symmetry, plot the partner points for the ones shown. noch 6 5 4 -3 -2 -1
Answers: 1
Do you know the correct answer?
1 a) A random sample of 25 was drawn from a normal distribution with a standard deviation of 5. The...
Questions in other subjects:
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 16.10.2019 02:30
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 16.10.2019 02:30
![Konu](/tpl/images/cats/informatica.png)
Computers and Technology, 16.10.2019 02:30
![Konu](/tpl/images/cats/en.png)
English, 16.10.2019 02:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 16.10.2019 02:30
![Konu](/tpl/images/cats/istoriya.png)
History, 16.10.2019 02:30
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 16.10.2019 02:30
![Konu](/tpl/images/cats/obshestvoznanie.png)