Question

The following table is from a publication. The individuals in the following table have an eye irritation, a nose irritation, or a throat irritation. They have only one of the three. Is there sufficient evidence to reject the hypothesis that the type of ear, nose, or throat irritation is independent of the age group at a level of significance equal to 0.05?

Age (years) | ||||

Type of Irritation | 18-29 | 30-44 | 45-64 | 65 and Older |

Eye | 435 | 566 | 366 | 68 |

Nose | 923 | 1295 | 789 | 110 |

Throat | 242 | 317 | 158 | 22 |

(a) Find the test statistic. (Round your answer to two decimal
places.)

(ii) Find the *p*-value. (Round your answer to four decimal
places.)

The manager of an assembly process wants to determine whether or
not the number of defective articles manufactured depends on the
day of the week the articles are produced. She collected the
following information. Is there sufficient evidence to reject the
hypothesis that the number of defective articles is independent of
the day of the week on which they are produced? Use *α* =
0.01.

Day of Week | M | Tu | W | Th | F |

Nondefective | 86 | 91 | 96 | 98 | 91 |

Defective | 13 | 8 | 4 | 4 | 8 |

(a) Find the test statistic. (Round your answer to two decimal
places.)

(ii) Find the *p*-value. (Round your answer to four decimal
places.)

Answer #1

The statistical software output for this problem is :

Test statistics = 13.00

P-value = 0.0431

2)

Test statistics = 8.35

P-value = 0.0795

The following table is from a publication. The individuals in
the following table have an eye irritation, a nose irritation, or a
throat irritation. They have only one of the three. Is there
sufficient evidence to reject the hypothesis that the type of ear,
nose, or throat irritation is independent of the age group at a
level of significance equal to 0.05?
Age (years)
Type of Irritation
18-29
30-44
45-64
65 and Older
Eye
444
576
334
61
Nose
907...

The following table is from the publication of Vital and
Health Statistics from the Centers for Disease Control and
Prevention/National Center for Health Statistics. The individuals
in the following table have an eye irritation, a nose irritation,
or a throat irritation. They have only one of the three. Is there
sufficient evidence to reject the hypothesis that the type of ear,
nose, or throat irritation is independent of the age group at a
level of significance equal to .05?
Age...

The following table is from the publication of Vital and
Health Statistics from the Centers for Disease Control and
Prevention/National Center for Health Statistics. The individuals
in the following table have an eye irritation, a nose irritation,
or a throat irritation. They have only one of the three. Is there
sufficient evidence to reject the hypothesis that the type of ear,
nose, or throat irritation is independent of the age group at a
level of significance equal to .05?
Age...

The manager of an assembly process wants to determine whether or
not the number of defective articles manufactured depends on the
day of the week the articles are produced. She collected the
following information. Is there sufficient evidence to reject the
hypothesis that the number of defective articles is independent of
the day of the week on which they are produced? Use α =
0.01.
Day of Week
M
Tu
W
Th
F
Nondefective
88
94
97
98
91
Defective...

The manager of an assembly process wants to determine whether or
not the number of defective articles manufactured depends on the
day of the week the articles are produced. She collected the
following information. Is there sufficient evidence to reject the
hypothesis that the number of defective articles is independent of
the day of the week on which they are produced? Use α =
0.01.
Day of Week
M
Tu
W
Th
F
Nondefective
87
92
99
96
93
Defective...

The manager of an assembly process wants to determine whether or
not the number of defective articles manufactured depends on the
day of the week the articles are produced. She collected the
following information. Is there sufficient evidence to reject the
hypothesis that the number of defective articles is independent of
the day of the week on which they are produced? Use α =
0.05.
Day of Week
M
Tu
W
Th
F
Nondefective
86
86
95
90
91
Defective...

1A) The manager of an assembly process wants to determine
whether or not the number of defective articles manufactured
depends on the day of the week the articles are produced. She
collected the following information. Is there sufficient evidence
to reject the hypothesis that the number of defective articles is
independent of the day of the week on which they are produced? Use
α = 0.05.
Day of Week
M
Tu
W
Th
F
Nondefective
90
93
86
91
88...

1A) The manager of an assembly process wants to determine
whether or not the number of defective articles manufactured
depends on the day of the week the articles are produced. She
collected the following information. Is there sufficient evidence
to reject the hypothesis that the number of defective articles is
independent of the day of the week on which they are produced? Use
α = 0.05.
Day of Week
M
Tu
W
Th
F
Nondefective
95
95
93
94
88...

Consider the following hypothesis test. H0: p ≥ 0.75 Ha: p <
0.75 A sample of 280 items was selected. Compute the p-value and
state your conclusion for each of the following sample results. Use
α = 0.05. (a) p = 0.67 Find the value of the test statistic. (Round
your answer to two decimal places.) Find the p-value. (Round your
answer to four decimal places.) p-value = State your conclusion. Do
not reject H0. There is sufficient evidence to...

ou may need to use the appropriate technology to answer this
question.
Consider the following hypothesis test.
H0: μ ≥ 50
Ha: μ < 50
A sample of 36 is used. Identify the p-value and state
your conclusion for each of the following sample results. Use
α = 0.01.
(a)
x = 49 and s = 5.2
Find the value of the test statistic. (Round your answer to
three decimal places.)
Find the p-value. (Round your answer to four decimal...

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