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
slavikrds [6]
3 years ago
13

Scientists collect data on the blood cholesterol levels (milligrams per deciliter of blood) of a random sample of 24 laboratory

rats. A 95% confidence interval for the mean blood cholesterol level μ is 80.2 to 89.8. Which of the following would cause the most worry about the validity of this interval?
(a) There is a clear outlier in the data.
(b) A stemplot of the data shows a mild right skew.
(c) You do not know the population standard deviationσ.
(d) The population distribution is not exactly Normal.
(e) None of these are a problem when using a t interval.
Mathematics
1 answer:
Ludmilka [50]3 years ago
6 0

Answer: (a) There is a clear outlier in the data.

Step-by-step explanation:

The statement relates that sample= 24

Confidence interval= 80.2 to 89.8.

Now the data does not mention anywhere the standard deviation which is an important parameter in using the t-procedure rather we assume that standard deviation is not known. So, the most worrying part is the skewness and the presence of strong outliers in the t-procedure.

So, the option a) is correct meaning a clear outlier in the data.

You might be interested in
What is the common ratio of 40,12,3.6
slava [35]

Answer:

0.3

Step-by-step explanation:

Divide the second term (12) with the first term (40), and you'll get 0.3

This is correct because you get the terms in the correct order when multiplying:
(First term: 40. Common ratio: 0.3)
40 x 0.3 = <u>12</u>
<u>12</u> x 0.3<em> </em>= <em>3.6</em>

40, <u>12</u>, <em>3.6</em>

3 0
2 years ago
Somebody please help me with this !!!
Damm [24]

Step-by-step explanation:

Case 1 :

3x + 2y = 6 \\ 4x + y = 2 \\ 3x = 6 - 2y \\ x =  \frac{6 - 2y}{3}  = \\ x = 2 -  \frac{2y}{3}  \\ 4(2 -  \frac{2y}{3} ) + y = 2 \\ 8 -  \frac{8y}{3}  + y = 2 \\  - 1.67y =  - 6 \\

y = 3.59 \\ x = 2 -  \frac{2y}{3}  \\x =  2 -  \frac{2 \times 3.59}{3}  \\  \\ x =  - 0.39

Case 2 :

3x + 2y = 6 \\ 4x  -  y = 2 \\ x = 2 -  \frac{2y}{3}  \\ 4(2 -  \frac{2y}{3} ) - y = 2 \\ 8 -  \frac{8y}{3}  - y = 2 \\   - 3.67y=  - 6 \\ y = 1.63

x = 2 -  \frac{2y}{3}  \\ x = 2 -  \frac{2 \times 1.63}{3}  \\ x = 2 - 1.087 \\ x = 0.913

7 0
3 years ago
A Rectangular Room has a length of 3 more than its width. The perimeter of the room is 90. What is the width of the room?
nignag [31]
The answer to your question is 21
4 0
3 years ago
The box and whisker plot represents the scores made by two different classes on the same test. By comparing the length of the bo
Trava [24]
You can try to find a way to get the range from the highest score to the lowest score.
4 0
3 years ago
Read 2 more answers
There are 323232 forwards and 808080 guards in Leo's basketball league.
ivann1987 [24]

Answer:

b.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Multiple-choice questions on Advanced Placement exams have five options: A, B, C, D, and E.
    11·1 answer
  • Use the divisibility rules to determine which of the following numbers 504 is divisible by. (Check all that apply.)
    5·1 answer
  • Use the graph of the function f to determine f(x)
    13·1 answer
  • 3x^3y + 12xy − 9x^2y − 36y Rewrite the expression completely factored. Show the steps of your work.
    9·1 answer
  • How many hundreds are in 401.308?
    15·2 answers
  • 10 PTS! <br> Solve the following expression:<br><br> 3²⁰  x  2¹⁰<br> ————— <br> 3    x  2²
    14·1 answer
  • Over the summer, for every 12 okra seeds Dana planted, 7 grew into plants. If he planted 144 okra seeds, how many grew into plan
    10·1 answer
  • Hello :) <br> Please help me solve this <br><br> Explain answer
    7·2 answers
  • Please help me !!! what’s the answer ?
    7·1 answer
  • [SCREENSHOT INCLUDED] Which of the following is the best estimate of f '(2) based on this table of values?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!