MATH 110 Module 5: Exam 2025- Requires
Respondus LockDown Browser + Webcam
100% Correct
why do we collect samples? - -to collect data from populations to make inferences
and answer questions about a population of interest
-element - -the entity for which data are collected
-population - -the collection of al the elements of interest
-sample - -a subset of the population
-simple random sampling of size n from a population of size N - -a sample selected
such that each possible sample of size n has the same probability of occurring
-point estimation - -a form of statistical inference in which we use data from a
sample to compute a value of a sample statistic that serves as an estimate of a
population parameter
-sampling distribution of x-bar - -the probability distribution of a possible values of
the sample mean x-bar
-expected value of sample mean - -population mean
-central limit theorem - -in selecting random samples of size n from a population,
the sampling distribution of the sample mean x-bar can be approximated by a
normal distribution as the sample size becomes large
-sample proportion p-bar - -the point estimate of the population proportion p
-sampling distribution of p-bar - -the probability distribution of all possible values of
the sample proportion p-bar
-
Respondus LockDown Browser + Webcam
100% Correct
why do we collect samples? - -to collect data from populations to make inferences
and answer questions about a population of interest
-element - -the entity for which data are collected
-population - -the collection of al the elements of interest
-sample - -a subset of the population
-simple random sampling of size n from a population of size N - -a sample selected
such that each possible sample of size n has the same probability of occurring
-point estimation - -a form of statistical inference in which we use data from a
sample to compute a value of a sample statistic that serves as an estimate of a
population parameter
-sampling distribution of x-bar - -the probability distribution of a possible values of
the sample mean x-bar
-expected value of sample mean - -population mean
-central limit theorem - -in selecting random samples of size n from a population,
the sampling distribution of the sample mean x-bar can be approximated by a
normal distribution as the sample size becomes large
-sample proportion p-bar - -the point estimate of the population proportion p
-sampling distribution of p-bar - -the probability distribution of all possible values of
the sample proportion p-bar
-
