When data are organized into levels, the highest data level is:
A) interval level data.
B) nominal level data.
C) ordinal level data.
D) ratio level data.
Q. 2A recent study in the restaurant business determined that the mean tips for male waiters per hour of work are 6.78 with a standard deviation of 2.11. The mean tips per hour for female waiters are 7.86 with a standard deviation of 2.20.
Based on this information, which of the following statements do we know to be true?A) The distribution of tips for both males and females is right-skewed.
B) The variation in tips received by females is more variable than males.
C) The median tips for females exceeds that of males.
D) On a relative basis, males have more variation in tips per hour than do females.
Q. 3The probability density function describes a discrete probability distribution.
Indicate whether the statement is true or false
Q. 4What is the standard deviation of the Q index fund?
A) 3.07
B) 2.79
C) 3.27
D) 2.69
Q. 5The main purpose of a pilot sample in an application involving an estimate for a population mean is to determine what the margin of error will likely be.
Indicate whether the statement is true or false
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