Mathematics, 01.02.2021 21:50 alphonsobedford7534
The ages of pennies at a particular bank follow a nearly normal distribution with mean 10.44 years with standard deviation 9.2 years. Say you take random samples of 30 pennies, find the mean age in each sample, and plot the distribution of these means. Which of the following are the best estimates for the center and spread of this distribution?
a. mean = 10.44, standard error = 9.2
b. mean = 10.44, standard error = 9.2/30 = 0.31
c. mean = 10.44/30 = 0.348, standard error = (9.2/30)2 = 0.094
d. mean = 10.44, standard error = 9.2/30 = 1.68
Answers: 1
Mathematics, 21.06.2019 19:30
Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*
Answers: 2
Mathematics, 21.06.2019 21:00
Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h
Answers: 3
The ages of pennies at a particular bank follow a nearly normal distribution with mean 10.44 years w...
Mathematics, 09.09.2019 07:20
History, 09.09.2019 07:20
History, 09.09.2019 07:20
Chemistry, 09.09.2019 07:20
Mathematics, 09.09.2019 07:20
Mathematics, 09.09.2019 08:10
History, 09.09.2019 08:10
Chemistry, 09.09.2019 08:10
Mathematics, 09.09.2019 08:10
Geography, 09.09.2019 08:10
Mathematics, 09.09.2019 08:10
Health, 09.09.2019 08:10
Physics, 09.09.2019 08:10
History, 09.09.2019 08:10
Mathematics, 09.09.2019 08:10
Mathematics, 09.09.2019 08:10