Question

The labor force participation rate is the number of people in the labor force divided by...

The labor force participation rate is the number of people in the labor force divided by the number of people in the country who are of working age and not institutionalized. The BLS reported in February 2012 that the labor force participation rate in the United States was 63.7% (Calculatedrisk.com). A marketing company asks 210 working-age people if they either have a job or are looking for a job, or, in other words, whether they are in the labor force.

What is the probability that fewer than 60% of those surveyed are members of the labor force?

a. 0.1324

b. 0.1996

c. 0.7995

d. 0.8676

Homework Answers

Answer #1

Solution

Given that,

p = 0.637

1 - p = 1 -0.637 = 0.363

n = 210

= p =p = 0.637

=  [p ( 1 - p ) / n] =   [0.637*(0.363) /210 ] = 0.03318

P( < 0.60)

= P[( - ) / < (0.60 -0.637) /0.03318 ]

= P(z < -1.115)

= 0.1324

probability = 0.1324

Answer = a) 0.1324

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