A survey is conducted to estimate the average monthly income QU employees. A lis

Question

A survey is conducted to estimate the average monthly income QU employees. A list of all employees at QU is available, and 100 employees are selected at random and interviewed. Use the above Information to answer 2 and 3 below the Target population is: One employee all employees all employees at QU 100 employees the sampling unit is: all employees one employee one sample none Assume that a class consists of 60 students seated in 6 rows of 10 students each. Answer 8,9 and 10 below. 4. A sample of 12 students is obtained by " taking 2 students randomly from the all students". the sample obtained is a random sample. simple stratified cluster Two stage cluster A sample of 10 students is obtained by " taking all students in the third row". the sample obtained is a. random sample. simple stratified cluster Two stage cluster A sample of 12 students is obtained by" taking the first and sixth students from each of the 6 rows" the sample obtained is a random sample. systematic Two stage cluster

Explanation / Answer

The “population” in statistics includes all members of a defined group that we are studying or collecting information on for data driven decisions. A part of the population is called a sample.

2. c all employees of QU

A sampling unit is one of the units into which an aggregate is divided for the purpose of sampling, each unit being regarded as individual and indivisible when the selection is made.

3. B one employee

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.

4. A. Simple random sampling.

In stratified random sampling, the strata are formed based on members' shared attributes or characteristics. Arandom sample from each stratum is taken in a number proportional to the stratum's size when compared to the population. These subsets of the strata are then pooled to form arandom sample.

5. B. Stratified sampling

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