Identify the type of sampling technique in the situations described below: The name of each contestant is written on a separate card, the cards are placed in a box, and three cards are picked from the box. A market researcher selects 300 electronic engineers working in the electronics industry and 300 electronics engineers working in the communications industry. A researcher interviews 21 colleagues who work in his building. A random sample of boxes of manufactured items are taken and then all items in these selected boxes are inspected. From a numbered list of 25 experimental subjects, 5 numbers are randomly drawn and the 5 subjects corresponding to these numbers were assigned to a particular experimental treatment. An operations manager wants to improve a manufacturing process by selecting every 20th item in the manufacturing line for quality checking. A private polling firm interview persons who purchase goods at a certain convenience store chain. Identify the type of Quantitative variable. The amount of power that a resistor can dissipate The number of capacitors in an electronic circuit The speed of a moving vehicle The frequency of a radio transmitter The volume of a certain chemical mixture The number of protons in a chemical reaction. The molecular weight of a chemical compound.
Identify the type of sampling technique in the situations described below:
The name of each contestant is written on a separate card, the cards are placed in a box, and three cards are picked from the box.
A market researcher selects 300 electronic engineers working in the electronics industry and 300 electronics engineers working in the communications industry.
A researcher interviews 21 colleagues who work in his building.
A random sample of boxes of manufactured items are taken and then all items in these selected boxes are inspected.
From a numbered list of 25 experimental subjects, 5 numbers are randomly drawn and the 5 subjects corresponding to these numbers were assigned to a particular experimental treatment.
An operations manager wants to improve a manufacturing process by selecting every 20th item in the manufacturing line for quality checking.
A private polling firm interview persons who purchase goods at a certain convenience store chain.
Identify the type of Quantitative variable.
The amount of power that a resistor can dissipate
The number of capacitors in an electronic circuit
The speed of a moving vehicle
The frequency of a radio transmitter
The volume of a certain chemical mixture
The number of protons in a chemical reaction.
The molecular weight of a chemical compound.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
