1) The process of using sample statistics to draw conclusions about true population parameters is called
A) statistical inference.
B) the scientific method.
C) sampling.
D) descriptive statistics.
Answer: A
2) Those methods involving the collection, prese

1.
a)
b)
c)
d)
The width of a confidence interval estimate for a proportion will be
narrower for 99% confidence than for 95% confidence.
wider for a sample size of 100 than for a sample size of 50.
narrower for 90% confidence than for 95% confidence.
narr

_ results from the exclusion of certain groups of subjects from a population frame.
ANSWER: Coverage error
Coverage error results in a _.
ANSWER: selection bias
_ results from the failure to collect data on all subjects in the sample.
ANSWER: Nonresponse

PROJECT
Habib Bank Limited
Business Statistics
Submitted to:
Sir Mubbasher Munir
Submitted by:
Umar Ashfaq
15006005-004
Naqash Malik
15006005-002
Program: BBA (H) BATCH-6
DEPARTMENT OF QUANTITATIVE METHODS
UNIVERSITY OF MANAGEMENT AND TECHNOLOGY, SIALKOT

PROJECT
Automobile Industry of Pakistan
Business Statistics
Submitted to:
Sir Mubbasher Munir
Submitted by:
Ahmad M. Nawaz
15006005-005
Usman Haider
15006005-008
Program: BBA (H) Batch-6
DEPARTMENT OF QUANTITATIVE METHODS
UNIVERSITY OF MANAGEMENT AND TECH

Sampling distributions describe the distribution of
parameters.
statistics.
both parameters and statistics.
neither parameters nor statistics.
ANSWER: b
The standard error of the mean
is never larger than the standard deviation of the population.
decrease

Question 41
2 out of 2 points
TABLE 12-13
Parents complain that children read too few storybooks and watch too ch
television nowadays. A survey of 1,000 children reveals the following
information on average time spent watching TV and average time spent re

Question 31
2 out of 2 points
TABLE 11-4
A campus researcher wanted to investigate the factors that affect visitor travel
time in a complex, multilevel building on campus. Specifically, he wanted to
determine whether different building signs (building map

Question 21
2 out of 2 points
The owner of a local nightclub has recently surveyed a random sample of n =
250 customers of the club. She would now like to determine whether or not the
mean age of her customers is over 30. If so, she plans to alter the ent

Question 11
2 out of 2 points
TABLE 10-2
A researcher randomly sampled 30 graduates of an MBA program and recorded
data concerning their starting salaries. Of primary interest to the researcher was
the effect of gender on starting salaries. Analysis of th

Question 1
2 out of 2 points
A survey claims that 9 out of 10 doctors recommend aspirin for their patients
with headaches. To test this claim against the alternative that the actual
proportion of doctors who recommend aspirin is less than 0.90, a random s

Sampling distributions describe the distribution of
parameters.
statistics.
both parameters and statistics.
neither parameters nor statistics.
ANSWER: b
The standard error of the mean
is never larger than the standard deviation of the population.
decrease

Submitted
9/21/15 10:54 AM
Name
Midterm Exam
Status
Completed
Score
96 out of 100 points
Instructions This examination has 50 equally-weighted questions. Pick the single best answer for each
question. Do not offer more than one answer for any question. If

True or False: The standard error of the mean is also known as the standard deviation of the sampling distribution of the sample mean.
ANSWER: True
True or False: A sampling distribution is defined as the probability distribution of possible sample sizes

Sampling distributions describe the distribution of
parameters.
statistics.
both parameters and statistics.
neither parameters nor statistics.
ANSWER: b
The standard error of the mean
is never larger than the standard deviation of the population.
decrease

Question 1 Multiple Choice out of 2 points
Why is the Central Limit Theorem so important to the study of sampling distributions?
Given Answer: d. It allows us to disregard the shape of the population when n is large.
Correct Answer: d. It allows us to dis