Math question

Problem 12 in Chapter 9 described a study that examined
the spotlight effect, which refers to people overestimating
the extent to which others notice their
appearance or behavior. In the study, n = 9 participants
were asked to put on a Barry Manilow T-shirt
and walk into a room where other students were
working. Later, the participants were asked to estimate
how many students in the room noticed the shirt. The
average estimate for the nine participants was M = 6.4
with SS = 162.
a. Make a point estimate of the number of people that
participants think noticed the shirt.
b. Compute the 90% confidence interval for the mean
number of people.
c. After interviewing the students in the room, the
researchers found that an average of μ = 3.1 students
actually noticed the shirt. Based on this value
and your answers from a and b, how much do people
overestimate t

+1  Views: 1830 Answers: 1 Posted: 7 years ago
Tags:

### Top contributors in Uncategorized category

ROMOS
Answers: 18390 / Questions: 154
Karma: 1097K

Colleen
Answers: 47518 / Questions: 115
Karma: 953K

country bumpkin
Answers: 11091 / Questions: 158
Karma: 811K

jhharlan
Answers: 9982 / Questions: 1130
Karma: 745K
> Top contributors chart