Question

1. the gross domestic product of a country.is it measurable or categorical,why. if categorical further classify if its norminal or ordinal and give reasons.

2. the rating of a hotel according to the number of stars it has. is it measurable or categorical,why. if categorical further classify if its norminal or ordinal and give reasons

3. identify the experimental units,response variable,factors, levels of each factor, and number of treatment of the effect of four different concerntrations of manure ( 0, 0.2, 0.4 and 0.6 cwt per acre) on the yield of three different varieties of cowpea

Answer 1

1) The gross product is the total value of goods produced in a country which is a measurable variable. The total value is a quantitative variable as it denotes quantity of goods which is continuous meaurable variable.

2) Rating of hotel denoting number of stars is a categorical variable which denotes categories using the number of rating and has a order in itself. For example the ratings are 1,2,3,4,5 where 5>4>3>2>1 , that is they have a order.

So rating is an ordinal categorical variable.

3)Experimental units- Categorical

Levels of factor- Categorical

Number of treatment - Measurable