Question
In: Statistics and Probability
A sample of employees at Acme Chemical Corporation was asked to indicate a preference for one...
A sample of employees at Acme Chemical Corporation was asked to indicate a preference for one of three pension plans. The results are given in the following table. Does it seem that there is a relationship between the pension plan selected and the job classification of the employees? Use the .01 significance level.
|
Pension Plan |
|||
|
Job Class |
Plan A |
Plan B |
Plan C |
|
Supervisor |
10 |
13 |
29 |
|
Clerical |
19 |
80 |
19 |
|
Labor |
81 |
57 |
22 |
State the hypotheses:
The critical value is:
The test statistic is
The conclusion for this problem is:
Solutions
orchestra answered 3 years agoRelated Solutions
A sample of employees at a large chemical plant was asked to indicate a preference for...
A sample of employees at a large chemical plant was asked to
indicate a preference for one of three pension plans. The results
are given in the following table. Does it seem that there is a
relationship between the pension plan selected and the job
classification of the employees? Use the 0.01 significance
level.
Pension Plan
Job Class
Plan A
Plan B
Plan C
Supervisor
43
43
43
Clerical
46
46
37
Labor
66
39
33
State the decision rule....
A sample of employees at Jumbo Electronics was asked to indicate a preference for 3 pension...
A sample of employees at Jumbo Electronics was asked
to indicate a preference for 3 pension plans. The results are given
below, Does it seems that there is a relationship between the
pension plan selected and the job classification of the employees.
Use point 0.01% significance level to calculate Chi Square. Job
Class Pension Plan Plan A Plan B Plan C Supervisor 10 13 29
Clerical 19 80 19 Labor 81 57 22
4. A sample of employees at Jumbo Electronics was asked to indicate a preference for 3...
4. A sample of employees at Jumbo Electronics was
asked to indicate a preference for 3 pension plans. The results are
given below, Does it seems that there is a relationship between the
pension plan selected and the job classification of the employees.
Use point 0.01% significance level to calculate Chi Square.
Job Class Pension Plan
Plan A Plan B Plan C
Supervisor 10 13 29
Clerical 19 80 19
Labor 81 57 22
4. A sample of employees at Jumbo Electronics was asked to indicate a preference for 3...
4. A sample of employees at Jumbo Electronics was asked to indicate
a preference for 3 pension plans. The results are given below, Does
it seems that there is a relationship between the pension plan
selected and the job classification of the employees. Use point
0.01% significance level to calculate Chi Square.
Job Class Pension Plan
Plan A Plan B Plan C
Supervisor 10 13 29
Clerical 19 80 19
Labor 81 57 22
Children of three ages are asked to indicate their preference for three photographs of adults. Do...
Children of three ages are asked to indicate their preference
for three photographs of
adults. Do the data suggest that there is a significant
relationship between age and
photograph preference? What is wrong with this study? [Chi-Square =
29.6, with 4
df: ? < 0.05].
###
Photograph
Age of child
A
B
C
5-6 years
18
22
20
7-8 years
2
28
40
9-10 years
20
10
40
Sony corporation conducts a study in which a sample of 38 employees is selected from one...
Sony corporation conducts a study in which a sample of 38
employees is selected from one site with a population standard
deviation of 3.0. The sample mean weight of the employees is
100.5kg. A sample of 50 employees is selected from a second site
with a population standard deviation of 5.2kg. The sample mean
weight of the employees is 98.8. Conduct the following test of
hypothesis using the 0.02 significance level.
H0 : μ1 =
μ2
H1 : μ1 ≠...
Sony corporation conducts a study in which a sample of 44 employees is selected from one...
Sony corporation conducts a study in which a sample of 44
employees is selected from one site with a population standard
deviation of 3.3. The sample mean weight of the employees is
101.5kg. A sample of 46 employees is selected from a second site
with a population standard deviation of 5.0kg. The sample mean
weight of the employees is 99.9. Conduct the following test of
hypothesis using the 0.10 significance level.
H0 : μ1 =
μ2
H1 : μ1 ≠...
Students are asked to rate their preference for one of four video games. The following table...
Students are asked to rate their preference for one of four
video games. The following table lists the observed preferences in
a sample of 100 students. State whether to retain or reject the
null hypothesis for a chi-square goodness-of-fit test given the
following expected frequencies. (Assume alpha equal to 0.05.)
Video Games
McStats
Tic-Tac
Stats
Silly
Stats
Super
Stats
Frequency
observed
25
25
25
25
(a) expected frequencies: 70%, 10%, 10%, 10%, respectively
Retain the null hypothesis.Reject the null
hypothesis. ...
In a large corporation, 65% of the employees are male. A random sample of 5 employees...
In a large corporation, 65% of the employees are male. A random
sample of 5 employees is
selected. We wish to determine the probability of selecting
exactly 3 males. Use an appropriate
probability distribution to answer the following:
(a) Define the variable of interest for this scenario.
(b) What is the probability that the sample contains exactly
three male employees?
(c) Justify the suitability of the probability distribution that
you used to solve part (a).
(d) What is the expected...
In a large corporation, 65% of the employees are male. A random sample of 5 employees...
In a large corporation, 65% of the employees are male. A random
sample of 5 employees is selected. We wish to determine the
probability of selecting exactly 3 males. Use an appropriate
probability distribution to answer the following:
(a) Define the variable of interest for this scenario.
(b) What is the probability that the sample contains exactly
three male employees?
(c) Justify the suitability of the probability distribution that
you used to solve part (a).
(d) What is the expected...
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