Sampling and Sampling
Predict and forecast values of
Test hypotheses about values of
The Normal Distribution
they work they fit lots
of data in real world
Std. Dev = 14.76
Mean = 35.3
N = 713.00
Ht (cm 1996
Height (cm) of Hypericum cumulicola at Archbo
AMIT K BARDHAN
FA C U LT Y O F M A N A G E M E N T S T U D I E S
UNIVERSITY OF DELHI
The prospect of getting rich is highly motivating, and
few people get rich without taking a gamble.
Peter L. Bernstein
a statement of what the researcher
believes will be the outcome of an
experiment or a study.
a more formal structure derived from the
Linear correlation and
cov ( x , y )
X )( yi Y )
cov(X,Y) > 0
X and Y are positively correlated
cov(X,Y) < 0
X and Y are inversely correlated
cov(X,Y) = 0
X and Y are independent
A point estimate consists of a single
sample statistic that is used to estimate the
true population parameter.
TRUE / FALSE
The sample mean is a point estimate of
the population mean.
TRUE / FALSE
A point estimate consist
Sampling and Estimation
1. A company selling apparel online sends out emails every
Monday to all its customers who made a purchase. This is
an example of a
A) systematic sample.
B) convenience sample.
C) simple random sample.
D) stratified sampl
In its standardized form, the normal distribution
A) has a mean of 0 and a standard deviation
B) has a mean of 1 and a variance of 0.
C) has an area equal to 0.5.
D) cannot be used to approximate discrete