Mathematics, 27.02.2020 22:44 jhinny
The average gasoline price of one of the major oil companies in Europe has been $1.25 per liter. Recently, the company has undertaken several efficiency measures in order to reduce prices. Management is interested in determining whether their efficiency measures have actually reduced prices. A random sample of 49 of their gas stations is selected and the average price is determined to be $1.20 per liter. Furthermore, assume that the standard deviation of the population () is $0.14.
1. At the 0.05 level of confidence, what is the correct statistical decision?
a. Reject the null hypothesis
b. Fail to reject the null hypotheses
c. Accept the null hypothesis
d. Cannot make a statistical decision with this information
The p-value for this problem is:
a. 0.4938
b. 0.0062
c. 0.0124
d. 0.05
Answers: 2
Mathematics, 21.06.2019 17:00
Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?
Answers: 1
Mathematics, 21.06.2019 17:00
What is the arc length when θ =pi over 3 and the radius is 5 cm? (5 points) 5 pi over 3 cm 10 pi over 3 cm 16 pi over 3 cm pi over 3 cm
Answers: 1
Mathematics, 21.06.2019 19:00
The reflexive property of congruence lets you say that ∠pqr ≅
Answers: 1
Mathematics, 21.06.2019 22:20
The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?
Answers: 2
The average gasoline price of one of the major oil companies in Europe has been $1.25 per liter. Rec...
Biology, 08.12.2020 01:00
Biology, 08.12.2020 01:00
Spanish, 08.12.2020 01:00
English, 08.12.2020 01:00
Mathematics, 08.12.2020 01:00
Mathematics, 08.12.2020 01:00
History, 08.12.2020 01:00
Mathematics, 08.12.2020 01:00
Mathematics, 08.12.2020 01:00
Health, 08.12.2020 01:00
Health, 08.12.2020 01:00