When students are asked to list their age and the percentage of their college expenses that they pay for themselves, the type of data being collected is quantitative.
Indicate whether the statement is true or false
Q. 2In probability theory, what is the outcome of an experiment?
A) the absolute values of all samples
B) the collection of all possible experiments
C) a theoretical result
D) the result that is observed
Q. 3Test at the 10 level of significance the null hypothesis that the population mean sales are the same for the three marketing schemes.
What will be an ideal response?
Q. 4The right and left edges of the box in a box and whisker plot represent the 3rd and 1st quartiles, respectively.
Indicate whether the statement is true or false
Q. 5The margin of error for a prediction interval is larger than the corresponding value for confidence intervals because ________.
A) the distribution of the random variable is a standard normal distribution
B) evaluating a true proportion requires a larger margin of error
C) the variability of the new observation around the mean is accounted for
D) this new value is from the same population
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