What is the expected count for the cell corresponding to Class 101 and Freshman using the table below?
a.57,600
b.21.99
c.140
d.94.43
Q. 2 Suppose a study is conducted to determine if males and females differ in their preference of eating location (Fast food restaurant, Eat in restaurant or Home). Using the
Minitab output below, what can be concluded?
a.It can be concluded that the relationship between gender and preference of eating location is not statistically significant using
b.The proportion of females is significantly different from the proportion of males with respect to eating location preference using
.
c.The test conducted is not valid and therefore no conclusion can be made.
d.The proportion of females is significantly different from the proportion of males with respect to eating location choice using
.
Q. 3
In an analysis of a two-way contingency table, what does the chi-square statistic measure?
a.It measures the difference between the observed counts and the corresponding expected counts for all cells.
b.It measures the difference between the observed counts in the rows and the observed counts in the columns.
c.It measures the difference between the means of the two columns.
d.It measures the difference between the expected counts in the columns and the expected counts in the rows.
Q. 4
A multinomial experiment is the same as a binomial experiment when the number of categories, k, is equal to what number?
a.2
b.3
c.1
d.4
Q. 5
Which of the following is not a characteristic of a multinomial experiment?
a.The outcomes of each trial fall into one of
k categories.
b.The experiment consists of
n identical independent trials.
c.The probability of each category occurring is constant from trial to trial.
d.The outcomes will be approximately normally distributed.
Q. 6 Which of the following test statistics would reject the null hypothesis for an upper-tailed chi-squared test using
?
a.
with
df = 15
b.
with
df = 29
c.
with
df = 6
d.
with df = 8
Q. 7
What distribution does the test statistic have for a multinomial experiment with k possible outcomes and n independent trials?
a.
t distribution with
n - 1 degrees of freedom
b.
distribution with
n - 1 degrees of freedom
c.Poisson distribution
d.
distribution with
k - 1 degrees of freedom
Q. 8 What is the test statistic for a Wilcoxon Signed-Rank Test of no difference for the following set of data?
Data for Differences: +30, +35, +15, -65, +5, -20
a.
T = -9
b.
T = 9
c.
T = 85
d.
T = 12
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