BSAD 3500 Exam 3 with correct answers 100% 2026

BSAD 3500 Exam 3 with correct answers 100% 2026 Census - Correct Answer Data collected from or about each member of a population (parameter) Sample - Correct Answer Subset, of elements from the larger group, with the goal of making projections about what would be true for the population (statistic) Parameter - Correct Answer Characteristic of measure of a population/everyone. If it were possible to take measures from all members of a population without error, true value of parameter could be determined EX: Actual number (no error) of number of hours a home watches Netflix Statistic - Correct Answer Characteristic or measure of a sample. Statistics are calculated from sample data and used to estimate population parameters. Most common in studies. Overcoming Random Sampling Error - Correct Answer Increase sampling size. Only error we can correct by collecting data from more people. What is a Sampling Frame? - Correct Answer List of populations elements from which a sample will be drawn. It is the source that you get the data from. EX: Customer list, telephone directories, Data from online platform (Prolific) Two types of Sampling Procedure - Correct Answer 1. Non-probability Sample 2. Probability Sample #1 Non-probability Sample - Correct Answer -Sample that relies on personal judgement in the selection process. Not all elements have an opportunity to be included, so cant estimate probability any particular element will be included. Typically used in exploratory research or experiment design -Sampling error and margin of error can't be estimated or calculated - Techniques include: convenience, judgement (snowball), quota NP: Convenience Sample - Correct Answer Population elements are sampled simply because they are in the right place at the right time. Also called "Accidental" sample. Who is available and ready to participate EX: College Student research, Web, Malls NP: Judgement Sample - Correct Answer Population elements are handpicked because they are expected to serve the research purpose. EX: Prolific Panel, Amazon Turk - pick who participates from platform NP: Snowball Sample (Judgement) - Correct Answer We judge someone fits the profile of target population and ask them to find others that are similiar to them to participate. Issue is not knowing if they are lying. EX: Workshop on herbal supplements where you ask them to participate and ask them to find 5 others to to study. Typically includes compensation. NP: Quota Sample - Correct Answer Sample chosen so that proportion of sample elements is about the same as the proportion of the elements with the characteristics in target population. EX: Asked to draw a quote sample of 1000 - need right proportion of freshman, seniors, ect #2 Probability Sample - Correct Answer -Sample which target population has a known, nonzero chance of being included in sample. -Can calculate sampling error and estimate any individual being included in study -Techniques include: Simple Random, Systematic, Stratified, Cluster (Area) PS: Simple Random Sample - Correct Answer Each unit included in the population has a known and equal chance of being selected for sample. Random in everyday sense, but not in a scientific sense. EX: Sample drawn by a computer using a random select function PS: Systematic Sample - Correct Answer Probability sample in which every kth element in population is selected for the sample pool after you select your random starting point. -must calculate sampling interval EX: Randomly select 6 and every 9th person after is selected in list PS: Stratified Sample - Correct Answer Sample which (1) the population is divided into mutually exclusive subsets (2) a simple random sample of elements is chosen independently from each group/subset - Subsets are HOMOGENEOUS (similarities) WITHIN, but HETEROGENEOUS (different across) with key variables EX: Drone,Airline carriers PS: Cluster Sample - Correct Answer Similar to Stratified, (1) population is divided into mutually exclusive subsets. Unlike stratified, (2) simple random sample of subsets (clusters) is chosen -Subsets are HETEROGENEOUS (different) within but HOMOGENEOUS (similiar) between key variables - Area Sampling is a form of cluster sampling that uses census tracks or city blocks as sample units 3 factors that affect sample size - Correct Answer 1. Amount of Diversity or Variation: As diversity/variation increases, larger sample is required