1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
3 years ago
10

A researcher wants to test if the rate of smoking among adults in Chicago is greater than the national rate of 18%. A random sam

ple of 300 adults revealed 16% were current smokers.
Select the most conservative hypotheses.

a. H0: p=.16, Ha: p>.16

b. H0: p=.18, Ha: p?.18

c. H0: p?.18, Ha: p=.16

d. H0: p=.18, Ha: p<.18
Mathematics
1 answer:
AlekseyPX3 years ago
6 0

Answer:

the most conservative hypothesis is

<em>H₀</em>: <em>p</em> = 0.18, <em>Hₐ</em>: <em>p</em> > 0.18.

Step-by-step explanation:

The researcher wants to test whether the rate of smoking among adults in Chicago is greater than the national rate of 18% or not.

The hypothesis for this test can be defined as follows:

Null Hypothesis (H_{o}): The rate of smoking among adults in Chicago is same as the national rate, i.e. <em>p</em> = 0.18.

Alternate Hypothesis (H_{a}): The rate of smoking among adults in Chicago is greater than the national rate, i.e. <em>p</em> > 0.18.

So the most conservative hypothesis is <em>H₀</em>: <em>p</em> = 0.18, <em>Hₐ</em>: <em>p</em> > 0.18.

You might be interested in
Can someone help me with this ?
worty [1.4K]

Answer:

just use a calculator

Step-by-step explanation:

or use photo shop to get ez answers

4 0
3 years ago
Find the value of x.
brilliants [131]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
Consider the following data set: 9,8,8,2,0,0 find the median
tatuchka [14]
I’m pretty sure it’s 5
8 0
3 years ago
Vertical Lines
noname [10]

Answer:

kk

Step-by-step explanation:

8 0
2 years ago
What are the factors of 2x + 3x - 54? Select two options
tiny-mole [99]

Answer:

The answer: The factors are (2x-9) and (x+6).

The Problem:

Factor 2x^2+3x-54

Step-by-step explanation:

So I'm going to do trial factors using the choices to aid me.

Factored form for this problem if it exist will be in the form:

(mx+n)(kx+p).

In general this is what it would look like if we factored any quadratic in terms of x (given the quadratic is not prime but technically you could factor even over the complex numbers).

Let's look at:

(mx+n)(kx+p)

We want to choose k \text{ and } m such that when you multiply them you get 2.  Well those would have to be 2 and 1.

(2x+n)(x+p)

we want to choose n \text{ and } p such that when you multiply them you get -54. Based on the choices we want to get with -9 and 6, or 9 and -6. We don't know the order we want to choose it in either.

For example which of these would work:

(2x-6)(x+9)

(2x+6)(x-9)

(2x-9)(x+6)

(2x+9)(x-6)

We are going to consider only the outer and inner of FOIL since we already know the first times the first is 2x^2 and the last times the last is -54.

Let's test the first one:

(2x-6)(x+9)

Outer:  2x(9)=18x

Inner: -6(x)=-6x

------------------------ADD!

18x-6x=12x

The first choice did not give us the middle term 3x.

Trying the second one would give us the opposite since they are in the same form as previous just the + and - are switched.

Let's look at the third one:

(2x-9)(x+6)

Outer: 2x(6)=12x

Inner: -9(x)=-9x

--------------------------ADD!

12x-9x=3x

This is the winner.

The answer: The factors are (2x-9) and (x+6).

7 0
3 years ago
Read 2 more answers
Other questions:
  • An object is shot vertically upward from the ground with an initial velocity of 288 ft/sec. (a) At what rate is the velocity dec
    5·1 answer
  • The quotient of m and 11 minus 3 as a algebraic expression
    8·1 answer
  • PlZ Answer I Will Give You Brainliest!!!
    11·1 answer
  • The average weight of a chicken egg is 2.25 ounces with a standard deviation of 0.2 ounces. You take a random sample of a dozen
    10·1 answer
  • Chris has 2 pairs of black socks, 4 pairs of red socks, and 18 pairs of white socks in a dresser drawer. What is the probability
    6·2 answers
  • se an inequality symbol (&lt;, &gt;, =, ≠) to compare 5 + (−4) _____ 14 + (−13) A. &gt; B. = C. ≠ D.
    6·2 answers
  • Answer questions D and E
    9·1 answer
  • PLEASE HELP ME RIGHT AWAY
    6·2 answers
  • Katy has 100 quarters and dimes. Their total value is $19. How many of each coin does Katy have?
    5·1 answer
  • What is the missing numerator? blank over five plus eighteen over twenty equals thirty over twenty 8 5 3 2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!