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
ra1l [238]
3 years ago
5

Dr. Spike is a big fan of Bojangles and is particularly interested in the popularity of its celebrated wings dinner. Starting fr

om January, he would visit the local Bojangles on randomly selected days. Upon each visit, he would ask the manager how many wings dinners were sold on the previous day. By the end of March, he had visited Bojangles for a total of 31 times and thus collected 31 sale records of wings dinners. It was found that the sample mean was 26.2 sales with a sample standard deviation of 12.8. He would like to use this information to estimate the average number of wings dinner sold per day between January and March using a confidence interval. (This particular Bojangles sold 10725 wings dinners last year, but Dr. Spike does not know this.)
Which of the following facts is not relevant for evaluating whether or not a confidence interval for the mean number of wings dinners sold per day can be calculated using this data? Select one:

a. The number of sampled days is 32, which is a sufficient sample size for the confidence interval to be meaningful.
b. The days he visited were randomly selected, so the sample is representative of the population.
c. Since three sample standard deviations below the sample mean is negative (26.2-3*12.8 = -12.2), the distribution of wings dinner sales is positively skewed, and therefore not normal so the confidence interval will not be meaningful.
d. All of the above statements are relevant.
Mathematics
1 answer:
Effectus [21]3 years ago
6 0

Answer:

c

Step-by-step explanation:

If data is skewed then the upper and lower half have different amount of spread. Here there is no proof to say that data is not spread around mean or there are outliers. Therefore we can't say that the distribution of wings dinners sales in not normal.

You might be interested in
How to divide 1/8 ÷ 4
Zinaida [17]
Multiply 4 by its reciprocal: 1/8x1/4= 1/32.
8 0
2 years ago
Read 2 more answers
Solve for x:<br> ( x - 2 ) ( x + 3 ) ( 2x - 7 ) = 0
Alika [10]

Answer:

x=2, x=-3, or x=3.5

Step-by-step explanation:

Make them all in 3 equations equal to 0. The number of brackets, the number of equations.  

6 0
2 years ago
In 1934 there was an extreme drought and the Great Plains and the number 1,934 is the value of the nine and the hundredth place
WARRIOR [948]

It should be noted that No. the value of the 9 in the hundred place is not ten times the value of 3 in the tens place.

<h3>How to illustrate the information?</h3>

It should be noted that the value of 3 in 1934 is 30 and the value of 9 is 900.

1934 = 1000 + 900 + 30 + 4

Therefore the value of 9 will be:

= 30 × 3

Therefore, the the value of the 9 in the hundred place is 30 times the value of 3 in the tens place.

Learn more about place values on:

brainly.com/question/2041524

#SPJ1

5 0
1 year ago
What are the prime numbers​
AysviL [449]
Prime numbers are only divisible by 1 or itself; the first few are are 2, 3, 5, 7, and 11.
5 0
3 years ago
Read 2 more answers
If -5x-y=1 is a true equation, what would be the value of 5(-5x-y)?
Tanzania [10]

Answer:

-25-5x-5y

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Maggie answered 20 out of 25 questions correctly on a math test. What percent of the questions did she answer correctly?​
    13·2 answers
  • 18 kilometers to miles (to the nearest tenth)
    15·1 answer
  • the volume of a rectangular prism is represented by the function x3+6x-16. the length of the box is x + 2 , while the height is
    13·1 answer
  • -10x +y = -52 x-value and y-intercept​
    11·1 answer
  • Solve 2x - 8 + 3x &gt; 5x - 4 also if you can plz explain
    6·1 answer
  • How do you write 2.8 millimeters in expanded form?
    8·2 answers
  • What time will it be in 3/4 hour
    6·1 answer
  • The area covered by a topic lie plant triples every year. By what factors does the are covered by the plant increase every month
    9·1 answer
  • Write a fraction for each percent. <br><br> 75% of 96
    10·1 answer
  • What is negative 3 times 67
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!