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1) Due to normality, the formula for computing z is the same for a single data value, as it is for an average of the data values for a sample group. true or false?
2) One of the key concepts to solving applied problems, is to equate the area under the curve to probability of some event occurring. true or false?
3) A(n)-------- must be implemented, to convert an inherently discrete binomial distribution into the continuous curve of the normal distribution.
a.) Factor of 4
b.) Averaging factor
c.) Open ended distribution factor
d.) Continuity correction factor
Calculated test statistic at the 5% level of significance and An airline claims that 65% of its flights depart on time.
A linear correlation coefficient very close to 0 implies that there is a linear correlation between the averages, but a correlation between the averages does not imply a correlation between individuals as the conclusion incorrectly suggest.
a gummball machine has just been filled with 50 black 150 white 100 red and 100 yellow gum balls that have been
How could the engineer increase the accuracy of the interval without changing the level of confidence?
a box contains 11 red balls 5 green balls and 4 black balls. a sample of 8 is to be picked from the box. in how many
using the company records for the past 500 working days the manager of a car dealership has summarised the number of
Determine probability of 0 nonconforming units on first sample and 2 nonconforming units on second? First gasket selected is returned to lot before the second one is selected.
a production line makes units with a mean weight of 80 g and standard deviation of 5 g. what is the probability that a
Sample without replacement when testing batches of products. When sampling without replacement, should you use the multiplication rule for independent or dependent events.
How would you apply radical expressions in everyday life? Give an example of the expression.
Proportion of college students who prefer drink A: (0.384, 0.424). Identify the point estimate for estimating the true proportion of college students who prefer that drink.
The psychologist's task is to select the 10 high-anxiety subjects. Find the probability that the psychologist guesses at least 9 of the 10 high-anxiety subjects correctly.
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