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 15:00, juju323261
With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.
Answers: 1
Mathematics, 21.06.2019 20:30, maxy7347go
Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [−1, 1] no, f is continuous on [−1, 1] but not differentiable on (−1, 1). no, f is not continuous on [−1, 1]. yes, f is continuous on [−1, 1] and differentiable on (−1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.
Answers: 1
Mathematics, 21.06.2019 20:30, jtorres0520
Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?
Answers: 2
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