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
LiRa [457]
3 years ago
11

Suppose that a random sample of 50 bottles of a particular brand of cough syrup is selected and the alcohol content of each bott

le is determined. Let m denote the average alcohol content for the population of all bottles of the brand under study. Suppose that the resulting 95% confidence interval is (7.8, 9.4). a. Would a 90% confidence interval calculated from this same sample have been narrower or wider than the given interval
Mathematics
1 answer:
timofeeve [1]3 years ago
6 0

Answer:

95% confidence interval will be narrower.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 50

95% confidence interval for average alcohol content:

(7.8, 9.4)

a) 90% confidence interval

  • If we calculate a 90% confidence interval, then the confidence interval become narrower because we decreased the confidence percentage.
  • This would decrease the margin of error.
  • Hence, the confidence interval become narrower.
You might be interested in
The perimeter of a rectangular construction site is 124 meters. The width is eight meters more than 5 times the length. Find the
tresset_1 [31]

Answer:

The perimeter of a rectangle is the sum of both lengths and both widths, which is equal to 54 meters. Let's call Length L and Width W.

The question is saying this: L = 3 meters + 3(W). We have 2 variables, which means we need at least 2 equations to solve. So far we have one, our second equation is from the perimeter.

2 lengths + 2 Widths = 54. Now, it's just a plug and chug.

2(3 + 3W) + 2W = 54.

6 + 6W + 2W = 54

8W = 48

W=6

L = 3 + 3(6) = 21

To double check: 2(21) + 2(6) = 42 + 12 = 54

The Width is 6 meters, and the Length is 21 meters.

7 0
2 years ago
The terms power and exponent are used interchangeably. True False
coldgirl [10]
Uhmm mm I think it's true, and so does Siri hahahah
7 0
3 years ago
Antonio wants to choose a career path in which he would earn a median income of at least $20,000. He wants on-the-job training i
Zielflug [23.3K]

B) security guard

is the answer

hope this helps :D

4 0
3 years ago
Read 2 more answers
Aquí está mejor <br> Cómo simplificar esta expresión
Ludmilka [50]

Answer:

359/4

Decimal: 89.75

Step-by-step explanation:

6 0
2 years ago
108÷9⋅(−12)÷6−(100÷5)
pochemuha

Answer:

-44

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • 20 POINT QUESTION. EXPLAIN HOW YOU GOT THE ANSWER. I WILL MARK AS BRAINLIEST THANK YOU.
    15·1 answer
  • Write the prime factorization of the number 144 243 475
    11·1 answer
  • Please need help asap!!
    12·1 answer
  • 3. The table shows the number of hours that a grouped of students spent studying for the SAT during their first week of preparat
    15·2 answers
  • 37 chairs and 6 tables if The same number of chairs is placed at each table how many chairs can be placed at each table
    14·1 answer
  • Elanor paints this figure on her wall. Find the area of the figure.
    15·1 answer
  • How much did the shop spend originally?
    10·1 answer
  • Find x if L is between N and M, and NL = (6x - 5), LM = (2x + 3), and NM = (3x+13)?
    9·1 answer
  • ZA and ZB are complementary angles. If m A = (x – 21)° and m
    10·2 answers
  • Find the measure of &lt;BMD​ (please this is urgent)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!