Question

A survey of 2,000 undergraduates at a Caldwell university in NJ of 20,000 undergraduates was taken to determine the percentage of undergraduates living at home. The survey concluded that 20% of the students live at home.

a) Describe the population in words _________________________________________________.

b) The size of the population is ________________________________________.

c) Describe the sample in words ____________________________________________________.

d) The size of the sample is ___________________________________________.

e) The percentage value 20% represents a ________________________________.

f) The population parameter being studied is ____________________________________________________.

Determine if each of the following are a statistic or a parameter.

i) The average SAT score in the U.S.A. is 950. __________________________

ii) In an opinion poll it was determined that 45% like the Governor. _____________

iii) The average grade on a test in one of my classes was a 60. _______________

iv) The average age of all football players in NFL is 27.65 years. ______________

Answer 1

a) Describe the population in words Undergraduate students at a caldwell University in NJ.

b) The size of the population is 20000

c) Describe the sample in words 2000 undergraduate students at a Caldwell University in NJ.

d) The size of the sample is 2000

e). The percentage value 20% represents a statistic

f)  The population parameter being studied is the proportion of undergraduates at Caldwell University who are living at home.

i) The average SAT score in the U.S.A. is 950. Parameter

ii) In an opinion poll it was determined that 45% like the Governor. Statistic

iii) The average grade on a test in one of my classes was a 60. Statistic

iv) The average age of all football players in NFL is 27.65 years. Parameter