Mathematics, 12.03.2022 15:00 xavier1283
A large poll showed that 42%, percent of adults approved of their nation's prime minister. Margot wants to test if it is now lower, so she takes a random sample of 1,000 adults in that nation and finds that 390—or 39% percent of those sampled—approved of the prime minister.
Let p represent the proportion of adults in this nation who approve of the prime minister.
Which of the following is an appropriate set of hypotheses for her significance test?
Choose 1
(Choice A)
A
\begin{aligned} &H_0: p = 0.39 \\ &H_\text{a}: p < 0.39 \end{aligned}
H
0
:p=0.39
H
a
:p<0.39
(Choice B)
B
\begin{aligned} &H_0: p = 0.39 \\ &H_\text{a}: p < 0.42 \end{aligned}
H
0
:p=0.39
H
a
:p<0.42
(Choice C)
C
\begin{aligned} &H_0: p = 0.42 \\ &H_\text{a}: p < 0.39 \end{aligned}
H
0
:p=0.42
H
a
:p<0.39
(Choice D)
D
\begin{aligned} &H_0: p = 0.42 \\ &H_\text{a}: p < 0.42 \end{aligned}
H
0
:p=0.42
H
a
:p<0.42
Answers: 3
Mathematics, 21.06.2019 16:30
What is the difference between regular convex and concave polygons
Answers: 1
Mathematics, 21.06.2019 21:00
Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10
Answers: 2
Mathematics, 21.06.2019 21:30
Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?
Answers: 3
Mathematics, 21.06.2019 22:30
Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?
Answers: 2
A large poll showed that 42%, percent of adults approved of their nation's prime minister. Margot wa...
History, 14.07.2019 06:00
Mathematics, 14.07.2019 06:00
Mathematics, 14.07.2019 06:00
Chemistry, 14.07.2019 06:00
Mathematics, 14.07.2019 06:00
History, 14.07.2019 06:00
Social Studies, 14.07.2019 06:00