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
Orlov [11]
3 years ago
9

Individuals filing federal income tax returns prior to March 31 received an average refund of $1056. Consider the population of

"last-minute" filers who mail their tax return during the last five days of the income tax period (typically April 10 to April 15).
a. A researcher suggests that a reason individuals wait until the last five days is that on average these individuals receive lower refunds than do early filers. Develop appropriate hypotheses such that rejection of H0 will support the researcher’s contention.
b. For a sample of 400 individuals who filed a tax return between April 10 and 15, the sample mean refund was $910. Based on prior experience a population standard deviation of σσ = $1600 may be assumed. What is the p-value?
c. At αα = .05, what is your conclusion?
d. Repeat the preceding hypothesis test using the critical value approach.
Mathematics
1 answer:
Sholpan [36]3 years ago
6 0

Answer:

Step-by-step explanation:

(A) Develop appropriate hypotheses such that the rejection of H0 will support the researcher's contention.

What is the researcher's contention?

The researcher's contention is that late filers receive lower refunds than early filers. Hence, the researcher's contention will be the alternative hypothesis; since the rejection of H0 will imply the acceptance of Ha (the alternative hypothesis).

To this regard, the appropriate hypotheses developed are:

H0: Late filers receive HIGHER refunds than early filers

H1: Late filers receive lower refunds than early filers

The rejection of H0 will lead to the acceptance of H1; which is in line with the researcher's contention/claim.

You might be interested in
A machinist uses a special tool to measure the diameter of a small pipe. The measurement tool reads 0.276 inch. What is this mea
Oliga [24]
I believe it should be .3 because its rounded to the nearest tenth
4 0
2 years ago
The equation y = 5 represents the graph of a line perpendicular to the y-axis and passing through the point (1,5).
DedPeter [7]

Answer:

False

Step-by-step explanation:

A perpendicular line parallel to the y- axis has equation

x = c

where c is the value of the x- coordinates the line passes through.

The line passes through (1, 5) with x- coordinate 1, thus

x = 1 ← equation of perpendicular line

7 0
3 years ago
Read 2 more answers
Mai has a rectangular poster. The poster is 1.6 meters long and 1.2 meters wide.
dangina [55]

Answer:

19,200 cm^2.

Step-by-step explanation:

The area = 1.2 * 1.6 = 1.92 m^2.

There are 100 cm to 1 meter,  so 1 square meter = 100^2 = 10,000 cm^2.

Therefore 1.92 m^2 = 10,000 * 1.92 =  19,200 cm^2.

7 0
3 years ago
What is the slope of the line that passes through the points (4, 9) and (1, 6)?
Aleksandr [31]

a = ( 1 , 6 )

b = ( 4 , 9 )

slope =  \frac{y(b) - y(a)}{x(b) - x(a)} \\

Now just need to put the coordinates in the above equation :

slope =  \frac{9 - 6}{4 - 1} \\

slope =  \frac{3}{3} \\

slope = 1

And we're done...♥️♥️♥️♥️♥️

5 0
3 years ago
How would knowing the slope of a linear function help determine whether a function is increasing or decreasing?
leonid [27]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the equation of the line that passes through the point and is perpendicular to the line 3d
    9·1 answer
  • the average cost for a company to produce x items is x^2-10x+43 dollars. how many items should the company produce to minimize t
    10·1 answer
  • ASAP will get a thanks
    15·1 answer
  • If you know the answer could you help me on it
    6·1 answer
  • Answer choices : <br> A : x = - 5 <br> B : x = - 4 <br> C : x = 4 <br> D x = 5
    6·1 answer
  • In right triangle XYZ, triangle Y is the right angle and m angleX = 60 degrees. If YZ= 4 what is XY
    5·2 answers
  • A company has determined that its maximum profit occurs when it sells 10,000units per month. For every 1,000 units more or less
    5·1 answer
  • There are 52 cards in a standard deck: 13 hearts, 13 clubs, 13 diamonds , and 13 spades. Timothy draws four cards at random from
    10·1 answer
  • Is 2/3(3/4x-3/2) equal to 1/2x -1
    9·2 answers
  • Define bartering. Exchanging goods or services directly, without a medium of exchange.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!