Essay about Qnt 561 Final Exam

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Checklists with several items to be considered by respondents may be subject to _____. *
recency effects *
halo effects *
primacy effects *
leniency effects
For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We conclude that the two variables are __________. *
linear
*
related
*
not related *
Curvilinear
For any chi-square goodness-of-fit test, the number of degrees of freedom is found by ______. *
n + 1 *
k -1 *
n + k *
n – k – 1
Sam's Club installed self-checkout stations that can track not only member's purchases but also packaging problems, as the system uses universal product codes to
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*
The population distribution is skewed to the left. *
The population distribution is normal. *
The shape of the population distribution does not matter. *
The population distribution is skewed to the right.
What is the interpretation of a 96% confidence level? *
Approximately 96 out of 100 such intervals would include the true value of the population parameter. *
There's a 96% chance that the given interval includes the true value of the population parameter. *
There's a 4% chance that the given interval does not include the true value of the population parameter. *
The interval contains 96% of all sample means.

A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. What is the dependent variable? *
salesperson
*
number of contacts *
amount of sales dollars *
sales managers
A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. For what values of t will the null hypothesis not be rejected? *
To the left of -1.645 or to the right of

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