According to Bureau of Labor Statistics, 26.0 of the total part-time workforce in the U.S. was ...

According to Bureau of Labor Statistics, 26.0 of the total part-time workforce in the U.S. was between the ages of 25 and 34 during a recent month. A random sample of 90 part-time employees was selected during this month.
 
  Using the normal approximation to the binomial distribution, what is the probability that more than 27 people from this sample were between the ages of 25 and 34?A) 0.0668
  B) 0.1025
  C) 0.1611
  D) 0.3034

Q. 2

The sum of squares within (SSW) measures the variation between each data value of the grand mean for all of the data.
 
  Indicate whether the statement is true or false

Q. 3

The MCAT is the admission exam that medical schools use as one of the criteria for accepting students.
 
  The exam is based on a scale of 0-45. The following data shows the MCAT scores for nine students.
 
  32 36 29 31 30 35 34 26 30
 
  What percentile is the student who scored a 35 on the MCAT exam?
  A) 66th
  B) 70th
  C) 78th
  D) 83rd

Q. 4

The following data represents the number of days that 10 homes were on the market before being sold.
 
  47 95 113 116 57 72 51 12 109 20
 
  What percentile is the home that was on the market for 47 days?
  A) 15th
  B) 20th
  C) 25th
  D) 35th

Q. 5

The following data represents the actual talk time, in hours, for the Samsung smartphone for 11 users.
 
  25.1 19.1 21.6 9.5 20.3 18.0 24.6 25.2 21.9 29.7 28.5
 
  The 60th percentile of this data set is ________.
  A) 21.6
  B) 21.9
  C) 23.3
  D) 24.6

Q. 6

A discrete random variable that follows the Poisson distribution with a mean equal to  has a counterpart continuous random variable that follows the ________ distribution with a mean equal to  = 1/.
 
  A) exponential
  B) normal
  C) uniform
  D) discrete

Q. 7

Travelocity would like to test if the average roundtrip airfare between New York and London is less than 1,400. A random sample of 30 flights between New York and London was selected and the airfare was recorded.
 
  Assume that the standard deviation for the population of airfares between these two cities is 230 and the true population mean for airfare is 1,330. Using  = 0.10, beta equals ________.A) 0.1655
  B) 0.2483
  C) 0.2730
  D) 0.3483