Answer:
<em>b) a stratified random sample</em>
Step-by-step explanation:
Stratified random sampling is <em>a sampling process that includes dividing a group into smaller groups called strata</em>.
The strata are established in stratified random sampling or stratification on the basis of mutual characteristics or features of participants.
Answer:
The 90% confidence interval for population mean length of eastern rods is (23.73, 24.07).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for population mean when the population standard deviation is not known is:
The information provided is:
Compute the 90% confidence interval for population mean length of eastern rods as follows:
Thus, the 90% confidence interval for population mean length of eastern rods is (23.73, 24.07).
I am not completely sure how to name faces, but I will name them using all four points.
Faces DCBA
Faces BFGC
Faces HGFE
Answer:
2/7
Step-by-step explanation: