Question

A new operator was recently assigned to a crew of workers who
perform a certain job. From the records of the number of units of
work completed by each worker each day last month, a sample of size
five was randomly selected for each of the two experienced workers
and the new worker. At the *α* = .05 level of significance,
does the evidence provide sufficient reason to reject the claim
that there is no difference in the amount of work done by the three
workers?

Workers | |||

New | A | B | |

Units of work (replicates) | 9 | 13 | 11 |

9 | 12 | 12 | |

11 | 11 | 10 | |

11 | 12 | 13 | |

11 | 11 | 13 |

(a) Find the test statistic. **(Give your answer correct
to two decimal places.)**

(b) Find the *p*-value. **(Give your answer bounds
exactly.)**

< *p* <

Answer #1

applying one way ANOVA on above data

from above:

test statistic F=3.56

b)

0.05 < p value <0.10

A new operator was recently assigned to a crew of workers who
perform a certain job. From the records of the number of units of
work completed by each worker each day last month, a sample of size
five was randomly selected for each of the two experienced workers
and the new worker. At the α = .05 level of significance,
does the evidence provide sufficient reason to reject the claim
that there is no difference in the amount of...

A new operator was recently assigned to a crew of workers who
perform a certain job. From the records of the number of units of
work completed by each worker each day last month, a sample of size
five was randomly selected for each of the two experienced workers
and the new worker. At the α = .05 level of significance,
does the evidence provide sufficient reason to reject the claim
that there is no difference in the amount of...

To compare two programs for training industriaal workers to
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workers are subjected to a time -and - metion test that records the
speed of performance of a skilled job. The followind data are
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1. Four workers are available to perform tasks 1-4. However,
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or 4 and worker 3 can't do tasks 1, 3, or 4. Worker 4 can do any
task. Each worker can do at most one task, and each task should be
performed at most once.
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a. Of all students at the University of Metropolis, the
proportions taking certain numbers of units are as shown in the
table below.
Units
3
4
5
6
7
8
Proportion
2%
4%
5%
7%
5%
4%
Units
9
10
11
12
13
14
Proportion
8%
10%
13%
13%
17%
12%
Find the expected number of units that a student at U.M. takes.
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results (in hours) follow. Is there enough evidence to reject the
null hypothesis that there is no significant difference in the
length of pain relief provided by the four drugs at α =
.05?
Drug
A
B
C
D
2
4
9
4
8
6
8
2
7
6
11
2
3
5
10
9
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Group of answer choices
the same
fewer
more
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situations that would be appropriate to the type of club and
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An experiment was designed to compare the lengths of time that
four different drugs provided pain relief after surgery. The
results (in hours) follow. Is there enough evidence to reject the
null hypothesis that there is no significant difference in the
length of pain relief provided by the four drugs at α =
.05?
Drug
A
B
C
D
4
5
11
3
5
4
9
3
3
3
12
4
6
5
11
10
(a) Find the test statistic....

Sweeten Company had no jobs in progress at the beginning of
March and no beginning inventories. It started only two jobs during
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