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
Ksju [112]
3 years ago
9

Select whether a chi-square test for association is the most appropriate for the following scenarios: Most appropriate or Not ap

propriatea) Emma wishes to know whether gender has any relation with whether one prefers wine, beer, or liqueur. She surveys a group of men and women and records the number of participants who prefer wine, the number who prefer beer and the number who prefer liqueur. (yes or no)b) Danielle surveys a group of people on how often they eat dinner at restaurants and diners. The age and annual income of each participant are recorded. Danielle is interested in knowing whether these two factors are important in determining how often one goes out for dinner. (yes or no)c) A study intends to determine whether the average annual interest rate has any relation with the number of households who go overseas on a holiday at least once a year. Heidi collects data on the average annual interest rate and the number of households that travelled overseas at least once in that year over 6 years. (yes or no)d) It has been proposed that one's education level has a strong relation with one's income level. Barbara collects data from a large group of 38 year-old adults about their education level (primary and lower, secondary, tertiary and higher) and their income level (to the nearest $100). Barbara plans to test this data to see whether the mean income in each education level is the same across all three levels. (yes or no)
Mathematics
1 answer:
Ivan3 years ago
3 0

Answer:

Step-by-step explanation:

For option (A), yes.

The chi-square test for association between two categorical variables is appropriate for this.

For option (B), no.

Danielle's survey wants to HOW OFTEN people eat dinner at a restaurant. The chi-square test for association does not match this. The chi-square test for association would have been suitable if Danielle wanted to know the significance of the association between a certain type of people and a certain restaurant or food.

For option (C), no.

For option (D), yes.

You might be interested in
What are all values of x for which the series shown converges? ​
adoni [48]

Answer:

One convergence criteria that is useful here is that, if aₙ is the n-th term of this sequence, then we must have:

Iaₙ₊₁I < IaₙI

This means that the absolute value of the terms must decrease as n increases.

Then we must have:

\frac{(x -2)^n}{n*3^n} > \frac{(x -2 )^{n+1}}{(n + 1)*3^{n+1}}

We can write this as:

\frac{(x -2)^n}{n*3^n} > \frac{(x -2 )^{n+1}}{(n + 1)*3^{n+1}} = \frac{(x -2)^n}{(n + 1)*3^n} * \frac{(x - 2)}{3}

If we assume that n is a really big number, then:

n + 1 ≈ 1

And we can write:

\frac{(x -2)^n}{n*3^n} > \frac{(x -2)^n}{(n)*3^n} * \frac{(x - 2)}{3}

Then we have the inequality

1 > (x - 2)/3

And remember that this must be in absolute value, then we will have that:

-1 < (x - 2)/3 < 1

-3 < x - 2 < 3

-3 + 2 < x < 3 + 2

-1 < x < 5

The first option looks like this, but it uses the symbols ≤≥, so it is not the same as this, then the correct option will be the second.

5 0
2 years ago
30 points + brainliest answer.<br> Answer D got cut off, it is 5/18.
Basile [38]

C. 5/6

30 people with soda + 45 people with lemonade = 75/90 people

simplifies to 5/6.


3 0
3 years ago
Help =)
LenKa [72]
5x = 4y - 3

Standard form is Ax + By = C, so first subtract 4y to both sides:

5x - 4y = -3
8 0
3 years ago
Aleena has a savings account that gives 5% annual interest. She deposits $200 that she received on her birthday. Write an equati
ANTONII [103]

Answer:the equation is 200 + 10x

Step-by-step explanation:

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal or initial amount deposited into the account.

R represents interest rate on the principal

T represents time in years

I = interest after t years

From the information given

T = x years

P = $200

R = 5%

Therefore

I = (200 × 5 × x)/100

I = 1000x/100

I = 10x

Therefore, the equation representing the total amount of money that would be in the account after x years would be

200 + 10x

8 0
3 years ago
Help me please!!! Which of the following rational functions is graphed below?
777dan777 [17]

Answer:

let these by a guess Luck is luck get it

C

3 0
2 years ago
Other questions:
  • The shorter leg of a 30 60 90 triangle is a 4. how long is the hypotenuse?
    13·1 answer
  • One brand of coffee is packaged in cylinders where the height is equal to the radius, r. The volume of the package, in cubic cen
    6·1 answer
  • What's the answer?<br><br><br> (x – 2) (3x-4)
    14·2 answers
  • create three different drawings showing a number of circles and triangles in which the ratio of circles to triangles is 2:3
    8·2 answers
  • A flagpole is 10 feet tall. It’s shadow is 12 feet long how far is it from the top of the flagpole to the end of its shadow?
    8·2 answers
  • What is the product?
    6·1 answer
  • Slope-Intercept Form of 3x – 4y – 16 = 0
    10·2 answers
  • The table below show the approximate population of Virginia for 5 years. What is the
    13·1 answer
  • Which expression results in a sum or difference of<br> the answer choices are
    6·2 answers
  • Jack has two jobs. One job is at a gas station where he earns $11.00/hr and works 8 hours per week. His other job is walking dog
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!