Related Questions

Many more people who smoke develop lung cancer than do those who do not smoke. In the face of this evidence, how could a cigarette company representative argue against the conclusion that cigarette smoking cause lung cancer? To answer to the question, the representative could most likely say that
A Many things might cause cancer.
B A single cause may be reponsible for both smoking and cancer.
C People have the right to endanger themselves if they choose to do so.
D People may breathe die, but no one accuses breathing of causing death.
Which sampling is also known as purposive or non-probability sampling?
A Multi-stage sampling
B Deliberate sampling
C Area sampling
D Sequential sampling
A band-limited signal with a maximum frequency of 5 kHz is to be sampled. According to the sampling theorem, the sampling frequency which is not valid is
A 5 kHz
B 12 kHz
C 15 kHz
D 20 kHz
Which sampling procedure involves grouping the population and then selecting the groups or the clusters rather than individual elements for inclusion in the sample?
A Area sampling
B Cluster sampling
C Multi-stage sampling
D Deliberate sampling
The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
A Quarrying of stones
B Blasting of stones
C Seasoning of stones
D Dressing of stones
When a research problem is related to heterogeneous population, the most suitable sampling method is
A Cluster sampling
B Stratified sampling
C Convenient sampling
D Lottery method
Kind of cost which on elimination, would not reduce perceived usefulness that customers can obtain by using market offering is known as
A designed-in costs
B locked-in costs
C value added cost
D non-value added cost
For a loose sand sample and a dense sand sample consolidated to the same effective stress
A ultimate strength is same and also peak strength is same
B ultimate strength is different but peak strength is same
C ultimate strength is same but peak strength of dense sand is greater than that of loose sand
D ultimate strength is same but peak
Thermal conductivity of glass wool varies from sample to sample because of variation in
A Composition
B Density
C Porosity
D All of the above
A 25 ml sample was diluted to 250ml with odourless distilled water so that the odour of the sample no longer perceivable. What was the Threshold odour number?
A 11
B 10
C 25
D 05

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