Can someone asnwer please? Sampling Methods Choose the sampling method described
ID: 3297429 • Letter: C
Question
Can someone asnwer please?
Sampling Methods
Choose the sampling method described. Underline or highlight the portion of the example that tells you it is that sampling method.
SRS
Systematic
Cluster
Stratified
5.) Nestle wants to sample from its population of individual bottles of chocolate milk produced, so they choose every 100th bottle to test for cultures.
6.) They now want to sample from the four different lines of production, so they randomly sample 100 bottles from lines 1, 2, 3, and 4 and then test for cultures on each bottle.
7.) An electronics store marketing manager wants to know about TV sales on different weekends throughout the year, so they randomly choose 10 different weekends and then look at all of the TV sales on those weekends.
8.) An instructor wants to know about the characteristics of their students, so they randomly choose 15 of their students and give them a survey.
9.) Be creative!
Come up with different examples for each of the following:
Nominal Variable ____________________________________________________________
Ordinal Variable _____________________________________________________________
Interval Variable _____________________________________________________________
Ratio Variable _______________________________________________________________
SRS
Systematic
Cluster
Stratified
5.) Nestle wants to sample from its population of individual bottles of chocolate milk produced, so they choose every 100th bottle to test for cultures.
6.) They now want to sample from the four different lines of production, so they randomly sample 100 bottles from lines 1, 2, 3, and 4 and then test for cultures on each bottle.
7.) An electronics store marketing manager wants to know about TV sales on different weekends throughout the year, so they randomly choose 10 different weekends and then look at all of the TV sales on those weekends.
8.) An instructor wants to know about the characteristics of their students, so they randomly choose 15 of their students and give them a survey.
Explanation / Answer
SRS
Systematic
Cluster
Stratified
5.) Nestle wants to sample from its population of individual bottles of chocolate milk produced, so they choose every 100th bottle to test for cultures.
Systematic Sampling
6.) They now want to sample from the four different lines of production, so they randomly sample 100 bottles from lines 1, 2, 3, and 4 and then test for cultures on each bottle.
Stratified Sampling
7.) An electronics store marketing manager wants to know about TV sales on different weekends throughout the year, so they randomly choose 10 different weekends and then look at all of the TV sales on those weekends.
Cluster Sampling
8.) An instructor wants to know about the characteristics of their students, so they randomly choose 15 of their students and give them a survey.
SRS ( Simple Random Sampling)
9)
a) Nominal Variable:
Nominal variables have two or more categories without having any kind of natural order.
Ex. Gender(Male,Female) , Eye color ( Blue, Green, Brown, Hazel)
b) Ordinal Variable:
Ordinal variables have two or more categories with having natural order but the scale differences between two variables is not defined.
Ex. Speed of a moving object(slow, medium, fast, super fast)
c) Interval Variable:
A interval variable is a measurement where the diffrences between two values is meaningful. The difference between a temperature of 40 degrees and 60 degrees is the same difference as between 60 degrees and 80 degrees.
Ex. Temperature.
d) Ratio Variable:
A ratio variable, has all the properties of an interval variable, ans also has a clear definition of 0.0, when the variables equals to 0.0, there is none of that variable.
Ex. Height, Weight, Age, Temperature in kelvin( because 0.0 kelvin means no temperature)
SRS
Systematic
Cluster
Stratified
5.) Nestle wants to sample from its population of individual bottles of chocolate milk produced, so they choose every 100th bottle to test for cultures.
Systematic Sampling
6.) They now want to sample from the four different lines of production, so they randomly sample 100 bottles from lines 1, 2, 3, and 4 and then test for cultures on each bottle.
Stratified Sampling
7.) An electronics store marketing manager wants to know about TV sales on different weekends throughout the year, so they randomly choose 10 different weekends and then look at all of the TV sales on those weekends.
Cluster Sampling
8.) An instructor wants to know about the characteristics of their students, so they randomly choose 15 of their students and give them a survey.
SRS ( Simple Random Sampling)