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Lock, Statistics: Unlocking the Power of Data, 2e
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ASSIGNMENT RESOURCES
Chapter 6, Section 3-HT, Exercise 160
Copy of MAT 120-04 &
05 HW 10 Ch. 6.345 Fall
2020
O Chapter 6, Section 3-D,
Exercise 137
O Chapter 6, Section 3-CI,
Exercise 150
O Chapter 6, Section 3-CI.
Exercise 155
FLASH! Chapter 6,
Section 3-HT, Exercise
160
Table 1 gives flight arrival numbers from a random sample of flights for two
airlines.
Early
On-time
Late
Total
Airline 1
133
416
155
704
Airline 2
58
354
88
500
Total
191
770
243
1204
O FLASH! Chapter 6,
Section 3-HT, Exercise
165
Table 1 Arrival times for two airlines
O Chapter 6, Section 4-D,
Exercise 180
O Chapter 6, Section 4-D,
Exercise 187
O Chapter 6, Section 4-CI,
Exercise 192
Test whether there is a difference between the two airlines in the percent of flights
that arrive late.
(a) Find the relevant sample proportions in each group and the pooled proportion.
O Chapter 6, Section 4-CI,
Exercise 195
O FLASH! Chapter 6,
Section 4-HT, Exercise
217
O Chapter 6, Section 5,
Exercise 243
O Chapter 6, Section 5,
Exercise 245
X Chapter 6, Section 5,
Exercise 250
Round your answers to three decimal places, if necessary.
Pi =
P2 =
%3D
Review Score
Review Results by Study
Objective
LINK TO TEXT
(b) State the null and alternative hypotheses.
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Lock, Statistics: Unlocking the Power of Data, 2e
ELEMENTAR'
STANDARD VIEW
PRINTER VERSION
ВАCK
NEXT
ASSIGNMENT RESOURCES
Copy of MAT 120-04 &
05 HW 10 Ch. 6.345 Fall
2020
O Chapter 6, Section 3-D,
Exercise 137
O Chapter 6, Section 3-CI,
Exercise 150
O Chapter 6, Section 3-CI.
Exercise 155
FLASH! Chapter 6,
Section 3-HT, Exercise
160
(b) State the null and alternative hypotheses.
O FLASH! Chapter 6,
Section 3-HT, Exercise
165
O Chapter 6, Section 4-D,
Exercise 180
O Chapter 6, Section 4-D,
Exercise 187
O Chapter 6, Section 4-CI,
Exercise 192
LINK TO TEXT
O Chapter 6, Section 4-CI,
Exercise 195
O FLASH! Chapter 6,
Section 4-HT, Exercise
217
O Chapter 6, Section 5,
Exercise 243
O Chapter 6, Section 5,
Exercise 245
X Chapter 6, Section 5,
Exercise 250
(c) Give the test statistic and the p-value.
Round your answer for the test statistic to two decimal places and your answer for
the p-value to three decimal places.
test statistic =
Review Score
Review Results by Study
Objective
p-value =
What is the conclusion?
v Ho at a 5% level.
Ho at a 10% level.
LINK TO TEXT
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