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(3) In a study, the data you collect is: Letter grade (A, B, C, D, F). What is the level of measurement?

(3) In a study, the data you collect is: Letter grade (A, B, C, D, F).

What is the level of measurement?

a. nominal

b. ordinal

c. interval

d. ratio


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(4) Determine whether the value 85% is a parameter or statistic:

85% of registered voters turned out for the 2004 elections.

a. Parameter

b. Statistic


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(7) Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.2-in. and a standard deviation of 0.9-in.


In what range would you expect to find the middle of 68% of most head breadths?

Between ___________ and ____________.


If you were to draw samples of size 60 from this population, in what range would you expect to find the middle 68% of most averages for the breadths of male heads in the sample?

Between _____________ and ___________.


Should be accurate to 2 decimal places.


__________________________________________________________________________

(8) A survey of students at a high school is conducted, and the following facts are discovered: 36% of the students have laptops, 47% have tablets, and 26% of the students own both a laptop ad a tablet. A student is chosen at random from the high school: What is the probability that the student owns either a laptop or a tablet?


____________ %

Top Answer

3) b. ordinal 4) a. Parameter 7)... View the full answer

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