For a two tail hypothesis test if the absolute value

21. For a two-tail hypothesis test, if the absolute value of the z- or t -test statistic
exceeds the absolute value of the critical value, we reject the null hypothesis.
22. The value of β depends on the actual value of μ or p .
23. The null hypothesis is also known as the research hypothesis because it represents
the position the researcher wants to establish.
24. Once the sample size has been increased to the size of the population, the values
of α and β will approach 1.0.
25. For a one-tail (upper) hypothesis test, if the z- or t -test statistic exceeds the critical
value, we do not reject the null hypothesis.
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26. The following frequency distribution displays the daily
sales of muffins at Avalon Bakery. What is the probability that between 15 to 21
muffins will be sold tomorrow?
27. The complement to Event A is defined as all of the
outcomes in the sample space that are not part of Event A

28. Dempsey’s Garage repairs domestic and import cars. The following table shows the
number of cars that have been serviced by age and type during the last month. The
probability that a randomly selected car from this group was a domestic is _____.
29. The sampling error for a census equals zero
30. The average math SAT score for incoming freshman at a particular college is 535
with a standard deviation of 60. The coefficient of variation for SAT scores at this
school is _____.
31. The following frequency distribution displays the daily
sales of muffins at Avalon Bakery. What is the probability that between 20 to 35
muffins will be sold tomorrow?
32. ClearBags is an online company that sells packaging materials for photographers.
Suppose their average order size is $208.19 with a standard deviation of $53.44. A
random sample of 35 customer orders has been selected. The standard error of the
mean for this sample is
33. The probability that Event A and Event B will occur refers to the union of
Event A and Event B .
34. The _____ of Events A and B represent the number of
instances in which either Event A or Event B or both occur together.
35. The purpose of inferential statistics is to make claims or conclusions about a
population based on a sample.
36. Two real estate companies, Century 21 and RE/MAX, compete with one another in a
local market. The manager of the Century 21 office would like to advertise that homes
listed with RE/MAX average more than 10 days on the market when compared to
homes listed with his company. The following data shows the sample size and average
number of days on the market for the two companies along with the population
standard deviations.