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
Tanya [424]
3 years ago
6

In studying a random sample of 20 automotive​ batteries, the confidence interval ​(0.22​,0.33​) was constructed for the populati

on standard deviation of the​ batteries' reserve capacity in hours. This population standard deviation should be less than 0.26 hour. Does the confidence interval suggest that the variation in the​ batteries' reserve capacities is at an acceptable​ level? Explain your reasoning.
Mathematics
1 answer:
diamong [38]3 years ago
7 0

Answer:

NO.

Step-by-step explanation:

From the question, we are given a random sample of 20 automotive​ batteries, a confidence interval =(0.22​,0.33​). Also, the population standard deviation is said to be less than 0.26 hour.

The confidence interval does NOT suggest that the variation in the​ batteries' reserve capacities is at an acceptable​ level.

REASON: If you look at the confidence interval, we can see that it contains the value for the standard deviation that is 0.26 and even MORE value than 0.26.

This does not give us any suggestion that the standard deviation is less than 0.26.

You might be interested in
10
Zigmanuir [339]

Answer:

320

Step-by-step explanation:

distance=speed*time= 8 *40.

3 0
2 years ago
Image below! PLEASE HELP! THIS IS DUE!
Minchanka [31]

Answer:

270 if not simplified and

1/1 if simlifies

Step-by-step explanation:

8 0
2 years ago
Which expression represents the prime factorization of 108?
ankoles [38]

Answer:

2×2×3×3×3

Step-by-step explanation:

●108=

•2×54

•2×27

•3×9

• 3×3

Writing the prime numbers;

108=2×2×3×3×3

4 0
2 years ago
Graph f(x)=3x+5 and g(x)=3x-2
IgorLugansk [536]

Answer:

Two parallel lines

Step-by-step explanation:

the slopes are the same: slope = 3

f(x) 3x + 5                          g(x) = 3x - 2

Pick at least three x values and find their corresponding values for y. Remember the f(x)  and g(x) represent y

                                   f(x) = 3x + 5                           g(x) = 3x - 2

                                    y = 3x + 5                              y = 3x - 2

let x = 0                       y = 3(0) + 5                              y = 3(0) - 2

                                     y = 5                                         y   =  -2

Ordered pair                (0, 5)                                        (0, -2)

Let x = 1                      y = 3(1) +5                                y  = 3(1) - 2

                                  y = 8                                         y = 1

ordered pair                (1, 8)                                        (1, 1)

Let x = -1                  y = 3(-1) + 5                               y = 3(-1) - 2                  

                                  y = 2                                        y =  -5

ordered pair             (-1, 2)                                         ( -1, -5)

Locate the ordered pairs and draw the graph on the lines.  

you will graph two parallel lines        

4 0
2 years ago
Artie's dad's house is 21 ft tall. If Artie's dad is at the top of the house installing shingles, and his son Artie is on the gr
konstantin123 [22]

Answer:

B. 60.26°

Step-by-step explanation:

Given:

Consider the diagram representing the above scenario.

The top of the house where dad is standing is at A. The point where his son is standing is B. The bottom of the house is at C. AC is the height of house, BC is the distance between the house and son.

Height of the house (AC) = 21 ft

Distance between the house and son (BC) = 12 ft

Let the angle of depression for the dad be 'x'.

From the figure, it is clear that,

Angle of depression of the dad will be same as angle of elevation of Artie.

For triangle ABC,

\tan x=\frac{AC}{BC}\\\\\tan x=\frac{21\ ft}{12\ ft}\\\\\tan x=1.75\\\\x=\tan^{-1}(1.75)\\\\x=60.26

Therefore, the angle of depression  from the top of the house to the spot where Artie is standing is 60.26°.

Therefore, the correct option is option (B).

6 0
3 years ago
Other questions:
  • 1 3/5 = 1 + 3/5 the whole number part is
    9·1 answer
  • The probability of getting a 1 is 0.3
    8·1 answer
  • X + 7 = 18 what is the value of x
    14·1 answer
  • The choir is planning a trip to the water park. The cost to use a school bus is $350. Complete the table at the right then graph
    8·2 answers
  • A patient is to receive Taxol 100 mg/m2. The patient weighs 120 lbs and is 5'8" tall. What dose of Taxol in milligrams should th
    6·1 answer
  • Find the scale factor of a cube with volume 729 ft3 to a cube with volume 2197 ft3
    12·2 answers
  • Help me fast in need it
    9·2 answers
  • BRAINIEST AND 15 POINTS HELP FAST!!!
    13·1 answer
  • Kohl's sells Nike shoes for n dollars. Next week they will offer a 25% off coupon. Write the expression for the new price in 2 d
    6·1 answer
  • Mary is four years older than Sue. If the sum of their ages is 16, how old are Mary and Sue?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!