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
tatyana61 [14]
2 years ago
14

An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr

acted to test the MPG for this jeep since it is believed that the jeep has an incorrect manufacturer's MPG rating. After testing 110 jeeps, they found a mean MPG of 53.7. Assume the standard deviation is known to be 1.8. A level of significance of 0.02 will be used.
Find the value of the test statistic.
Mathematics
1 answer:
Advocard [28]2 years ago
7 0

Answer:

Value of the test statistic, z_{test}  = - 1.17

Step-by-step explanation:

Null hypothesis, H_{0}: \mu = 53.9

Alternative hypothesis, H_{a} : \mu \neq 53.9

Sample mean, \bar{X} = 53.7

Sample size, n = 110

Standard deviation, \sigma = 1.8

Significance level, \alpha = 0.02

The value of the test statistics is given by the formula:

z_{test}  = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test}  = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test}  = - 1.17

You might be interested in
A Ferris wheel can accommodate 35 people in 25 minutes. How many people can ride that Ferris wheel in 4 hours? What is the rate
Alex Ar [27]
336
60*4=240
35/25=1.4
1.4*240=336
7 0
3 years ago
Si Adrián tiene “x” años de edad, Teresa la tercera parte de Adrián, Isabel el doble de Teresa y Felipe el cuádruple de Adrián,
bixtya [17]

the answer is ISABELLA YOUR BOYFRINDS HERE

4 0
2 years ago
What is them gcf or 18,42,24
Katarina [22]

Answer:

6

Step-by-step explanation:

4 0
3 years ago
How many degrees are in an angle that turns through 1/3 of a circle?
Leona [35]

Hello!


We know that, in terms of radians and degrees, that an angle that turns through the entirety of a circle is 360 degrees. To find 1/3 of it, we just multiply by 1/3.


360(1/3)=120


Therefore, our answer is 120°.


I hope this helps!

6 0
3 years ago
Read 2 more answers
M∠DEF = __because they are_________
vovikov84 [41]

Answer:

m∠GDE

alternate interior angles

3 0
3 years ago
Other questions:
  • A line has a slope of 3/2. It passes through the point (4,5). Give the coordinates of three other points on this line
    5·1 answer
  • An expression 20x + 35y What is the greatest common factor
    13·1 answer
  • Write another division problem that has a quotient of 3 and a remainder of 28
    14·2 answers
  • Decide which of the two points on the graph of the line<br> X=0<br> A. 0,7<br> B. -4,0
    14·1 answer
  • Graph the following solution y=-1/2×+1 and y=-2/3×+2
    6·1 answer
  • Drag the values to order them from least to greatest, with the least at the top.
    7·1 answer
  • Simplify:<br> -3/8+ (-1/4)
    5·1 answer
  • Logan and Jack collected 180 aluminium cans from the park. Jack collected twice as many aluminum cans as Logan. How many alumini
    7·1 answer
  • Compare 2/8 to 1/2 write to explain you step by step
    9·1 answer
  • Point C has a _____ abscissa and a _____ ordinate.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!