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
V125BC [204]
3 years ago
14

A restaurant wants to test a new in-store marketing scheme in a small number of stores before rolling it out nationwide. The new

ad promotes a premium drink that they want to increase the sales of. 20 locations are chosen at random and the number of drinks sold are recorded for 2 months before the new ad campaign and 2 months after. The 90% confidence interval to estimate the true average difference in nationwide sales quantity before the ad campaign and after is (3.96, 28.79). Which of the following is the appropriate conclusion?
1) We are certain the average difference in sales quantity between after the ad campaign to before for all stores is between -3.83 and 1.83.
2) We are 95% confident that the difference between the average sales after the ad campaign and the average sales before the ad campaign is between-3.83 and 1.83.
3) The proportion of all stores that had a difference in sales between after the ad campaign to before is 95%.
4) We are 95% confident that the average difference in the sales quantity after to before of the stores sampled is between -3.83 and 1.83.
Mathematics
1 answer:
spin [16.1K]3 years ago
4 0

Answer:

2 or 4

Step-by-step explanation:

You might be interested in
Question 1 of 10
sergiy2304 [10]

Answer: C. 2 and 3 only

Step-by-step explanation:  i did the same quiz

6 0
2 years ago
Everytime u answer my question correct i will mark u brainlist
OleMash [197]

Answer:

Step-by-step explanation:

15c less than or equal to 200

4 0
3 years ago
Read 2 more answers
Order the numbers from least to greatest. 8, 0, -8, -3, 5
Kitty [74]

Answer:

-8,-3,0,5,8

Step-by-step explanation:

Number the the negatives from greatest to least first and continue to number the positives from least to greatest.

7 0
3 years ago
Solve step by step! Please answer correctly !!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!
Colt1911 [192]

Answer:

X is an acute angle, which means it is less than 90*, so it is probably 45*

Step-by-step explanation:

I was confused at first but then, I’m just like, I can solve this!

3 0
2 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!!AND READ ALL PLEASE
Scrat [10]
It terminates <span>9÷16=<span>.5625</span></span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • I have 7 hundreds blocks, 5 tens blocks, and 8 ones blocks. I use my blocks to model two 3-digit numbers. What could my two numb
    14·1 answer
  • Which is an equation in slope-intercept form for the line passing through (5, 1) and (–4, 7).
    5·1 answer
  • Jody can swim one length of the pool in 3 4ths of a minute.how long will it take jody to swim six lengths of the pool
    8·1 answer
  • Is there more wood in a 60​-foot-high tree trunk with a radius of 2.2 feet or in a 50​-foot-high tree trunk with a radius of 2.5
    9·1 answer
  • Find - 2 2/6 + (5/6)
    12·1 answer
  • Two cars started from a point and traveled in opposite directions; each
    6·1 answer
  • The quotient of -7 and y
    10·2 answers
  • 8x – 9y = –61<br> x +9y = 43<br> what is the y coordinate?
    7·1 answer
  • Please help. :))))))
    13·2 answers
  • Extra Practice: Identify the point used in
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!