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
lisabon 2012 [21]
3 years ago
8

A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is

actually different from the reported percentage. A random sample of 190 found that 41% of the readers owned a laptop. Find the value of the test statistic. Round your answer to two decimal places.
Mathematics
1 answer:
mariarad [96]3 years ago
6 0

Answer:

-1.00

Step-by-step explanation:

Given that a  publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage.

Sample size n =190

Sample proportion p = 0.41

H_0: p = 0.45\\H_a: p \neq 0.45

(Two tailed test )

Assuming H0 to be true

std error = \sqrt{pq/n} =\sqrt{0.45*0.55/155} \\=0.0400

p difference = -0.04

Test statistic = p differencce/std error

= -1

Hence test statistic is -1.00

You might be interested in
David's bedroom door is 8 feet tall and 4 feet wide. A new door would cost $8.00 per square foot. How much would a new bedroom d
Verdich [7]

Answer:

$ 256

Step-by-step explanation:

square footage of door =   8 x 4 = 32 ft^2

32 ft^2  * 8 dollar /ft^2  = $ 256

6 0
1 year ago
The town of Lantana needs $14,000 for a new playground Lantana elementary school raised 5358, Lantana Middle School raised $2,83
slavikrds [6]

Answer: The answer is actually 1,676. But you can estimate it to 2,000. so the town of Lantana would have about 2,000 dollasrs left to raise to reach there goal.

Step-by-step explanation:

You would first make sure you add all the number like 5,358+2,834+4,132. And once you get you answer you subtract 14,000 from the number you got!

I really hope that helps.

8 0
2 years ago
Read 2 more answers
Please help me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
andrew11 [14]

Answer: A is (arithmetic sequence)

and D is 1 2 3 4 5 6 7

Unfortunately, I only know the answer to those two.

Sorry.

5 0
2 years ago
1. 650 - 700 - 800 = ?<br>2. 25 - 45 + 23 =?​
butalik [34]
<h2>1. −850</h2><h2>2. 3</h2>

carry on learning

7 0
3 years ago
Read 2 more answers
Plz help meh
dusya [7]

Answer:

Step-by-step explanation:

The rock will hit the surface when its height equals zero.

t^2-8t-10=0

t^2-8t=10

t^2-8t+16=10+16

(t-4)^2=26

t-4=+(26^(1/2))

t=4+(26^(1/2))

t=9.1s

8 0
2 years ago
Other questions:
  • If l and m are parallel, which pairs of angles are supplementary?
    7·2 answers
  • leasing a car for a five-year period usually costs about the same as a five-year loan because __________. a. five-year leases ar
    12·1 answer
  • (X+h)^3 + (x+h)-(x^3+x)
    7·1 answer
  • (25 points)
    7·2 answers
  • ANSWER ASAP inequalities ​
    7·1 answer
  • 2TL
    14·1 answer
  • I need your help please !
    10·2 answers
  • Find the perimeter of the quadrilateral.
    9·1 answer
  • Write the formula for
    9·1 answer
  • 20men working 8hours a day took 18days to complete a work . How long will 24 men working 5 hours a day take to complete the some
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!