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
sleet_krkn [62]
3 years ago
8

In a sample of 1000 randomly selected consumers who had opportunities to send in a rebate claim form after purchasing a product,

260 of these people said they never did so. Reasons cited for their behavior included too many steps in the process, amount too small, missed deadline, fear of being placed on a mailing list, lost receipt, and doubts about receiving the money. Calculate an upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate. (Round your answer to four decimal places.)
Mathematics
1 answer:
Vadim26 [7]3 years ago
7 0

Answer: 0.2872

Step-by-step explanation:

Given : In a sample of 1000 randomly selected consumers who had opportunities to send in a rebate claim form after purchasing a product, 260 of these people said they never did so.

i.e. n= 1000 and x= 260

⇒ Sample proportion : \hat{p}=\dfrac{260}{1000}=0.26

z-value for 95% confidence interval : z_c=1.960

Now, an upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate. :-

\hat{p}+ z_c\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

=0.26+ (1.96)\sqrt{\dfrac{0.26(1-0.26)}{1000}}

=0.26+ (1.96)(0.01387)=0.26+0.0271852=0.2871852\approx0.2872

∴ An upper confidence bound at the 95% confidence level for the true proportion of such consumers who never apply for a rebate : 0.2872

You might be interested in
Can someone help me out?
LiRa [457]

1. perimeter = 4 and area = 1

2. permeter = 8 and area = 4

3. perimeter = 12 and area = 9

4. perimeter = 16 and area = 16

5. perimeter = 20 and area = 25

7 0
3 years ago
Read 2 more answers
Graph the line y = 6​
Eva8 [605]
Horizontal line through 6 on the y-axis

5 0
3 years ago
Describe the error in the picture?
Veseljchak [2.6K]

Answer:

it says 2 for $10 when you can easily get 2 for $7.60

Step-by-step explanation:

6 0
3 years ago
S see Use the graph y=e^x to evaluate these expression e^0
nika2105 [10]

Answer:

y= e^x

And we want to evaluate e^0 using the graph

And as we can see in the plot the y intercept is the blue point with y=0 and that correspond with:

y(0)= e^0 =1

Step-by-step explanation:

For this problem we know the following function:

y= e^x

And we want to evaluate e^0 using the graph

And as we can see in the plot the y intercept is the blue point with y=0 and that correspond with:

y(0)= e^0 =1

5 0
3 years ago
Sean Matthews is a waiter at the Duluxe Lounge. In his first weekly pay in March, he earned $300.00 for the 40 hours he worked.
Gnoma [55]
If we calculate the net take home pay and we assume the employer withheld federal income tax (wage-bracket, married, 2 <span>allowances), social security taxes, and state income tax (2%)
</span>
Married at least $500 but not more than $510       $21
Social Security at 4.2%                                          $21
State income tax at 2%                                          $10
Total taxes:                                                             $52

Total net take-home pay:                                       $598
4 0
3 years ago
Other questions:
  • A baker uses a coffee mug with a diameter of 8cm to cut out circular cookies from a big sheet of cookie dough. What is the area
    11·1 answer
  • Estimate the quotient by rounding the equation to relate to a one-digit fact 5134 / 721
    7·1 answer
  • Find the slope from the two points (-4,-1) (-3,-3)
    6·1 answer
  • Solve for d:<br> 2d+1/6=6(1/3d+1)
    10·2 answers
  • X + 1 + 2x+2=78 solve multi step equation
    8·1 answer
  • Find the value of f(-5)
    11·1 answer
  • [Please Help ASAP!]
    13·1 answer
  • 30 points! PLEASE HELP!!<br> please help me with these 5 math questions
    8·1 answer
  • Pleaseee answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
    15·1 answer
  • I will give you brainliestt if itscorrect
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!