Question

Identify which sampling technique was used to select the given
sample. Every 175th racquetball manufactured is selected to
measured its radius.

A)Random

B)Systematic

C)Stratified

D)Cluster

Answer #1

The answer is option B i.e systematic sampling.

In systematic sampling when N=nk where N= population size, n = sample size ,and k is the integer multiplier.

so suppose we need to select n samples from the population of size N by the scheme of systematic sampling..so we do that marking the whole population from 1 to N=nk.

Then we select a random no. from 1 to k ..let's say it's "i". where i belonging to [1,k]

so after getting" i " our sample of size would be observations marking i, i+k, i+2k, ......i+(n-1)k th observation..

so systematic sampling always deals with the selection of sample in a fixed distance ..as here we are selecting every 175 th sample so it's a case of systematic sampling...

I hope it will help you..if any problem you can ask in the comment section..Thanks

Match the following descriptions with the correct sampling
technique.
- A sample in which every group of n items is equally
likely.
A sample in which the population is divided into groups, and
then a random sample is taken from each.
- A sample in which every member has an equally likely chance of
selection.
- A sample where a few groups are randomly selected, and then
each member of those groups are measured.
- A sample where the first...

Identify the sampling strategy used in each scenario. Select
from simple random, systematic, stratified, cluster, convenience,
or state that this is not a random sampling strategy.
a. Names are written on ping-pong balls, then the balls are
mixed and drawn at random.
b. The population of those on campus are divided into students,
faculty, and staff. A proportional number are then randomly
selected using simple random sampling from each of the three
groups.
c. Individuals are lined up and every...

Identify the type of sampling used.
A statistics student is trying to determine the proportion of
all people who own cell phones. He interviews everyone in his
apartment building to determine who owns a cell phone. What
sampling technique was used?
A.
cluster
B.
stratified
C.
systematic
D.
simple random
E.
convenience

Identify the type of sampling used (random, systematic,
convenience, stratified, or cluster sampling) in the situation
described below. A researcher selects every 847 th social security
number and surveys the corresponding person.

Identify which of these types of sampling is used: random,
systematic, convenience, stratified, or cluster.
A large company wants to administer a satisfaction survey to its
current customers. Using their customer database, the company
randomly selects
5050
customers and asks them about their level of satisfaction with
the company.

Identify the type of sampling used: random, systematic,
convenience, stratified, or cluster.
To estimate the percentage of defects in a recent manufacturing
batch, a quality control manager at IBM selects every the 12th
computer that comes off the assembly line starting with the until
she obtains a sample of 90 computers

Identify the sampling technique used in the study. Choose either
simple random, clustered, stratified, systematic, or
convenience.
1. A community college student interviews everyone in a
statistics class to determine the percentage of students that own a
car.

Identify the sampling techniques used, and discuss potential
sources of bias (if any). Explain.
After a tornado, a disaster area is divided into 150 equal
grids. Fifty of the grids are selected, and every occupied
household in the grid is interviewed to help focus relief efforts
on what residents require the most.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
What type of sampling is used?
a) Stratified sampling is used, since the disaster area is
divided into grids, and some of those grids are selected and...

Sampling is the process or technique of selecting a suitable
sample for the purpose of determining the parameters or
characteristics of the whole population. To carry out a study, one
might bear in mind what size the sample should be, and whether the
size is statistically justified and lastly, what method of sampling
is to be used. Analyze any TWO (2) differences
between stratified random sampling and cluster sampling.

Which is better, a score of 90 on a test with a mean of 71 and a
standard deviation of 15, or a score of 688 on a test with a mean
of 493 and a standard deviation of 150?
Question 5 options:
a)
none of the above
b)
a score of 688
c)
Both scores have the same position in the distribution.
d)
a score of 90
Question 6 (1 point)
Identify and circle the type of sampling used...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 9 minutes ago

asked 9 minutes ago

asked 10 minutes ago

asked 25 minutes ago

asked 32 minutes ago

asked 41 minutes ago

asked 41 minutes ago

asked 43 minutes ago

asked 54 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago