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
Zielflug [23.3K]
3 years ago
11

Assuming that a computer has been used to compute a P-value = 0.01635, what can we conclude about the following situation? A sim

ple random sample of 50 speeds (in mph) is obtained from cars traveling on a section of I-10 through Tallahassee. The sample has a mean of 72.3 mph and a standard deviation of 7.4 mph. Use a 0.05 significance level to test the claim that the mean speed of all cars is greater than the posted speed limit of 70 mph.
Mathematics
1 answer:
Arada [10]3 years ago
8 0

Answer:

Step-by-step explanation:

From the information given, we would write the hypothesis.

For the null hypothesis,

H0 : µ = 70

For the null hypothesis,

Ha : µ > 70

This is a right tailed test because of the symbol of greater than.

The decision rule is to reject the null hypothesis if the level of significance is greater than the p value and accept the null hypothesis if the level of significance is lesser than the p value.

Therefore, since the significance level, 0.05 > p value, 0.01635, then we would reject the null hypothesis. There is enough evidence that the mean speed of all cars is greater than the posted speed limit of 70 mph.

You might be interested in
gavin bought 2 1/2 cubic yards of topsoil for $75 what is the unit rate in cost per cubic yard for the topsoil
Kruka [31]

Answer:

$30

Step-by-step explanation:

Divide the cost ($75) by the yards (2 1/2) to get $30 per yard.

7 0
2 years ago
Read 2 more answers
A basketball is dropped from a height of 330 feet. The function f(x) =330 (0.4)x gives the height of each bounce, where x is the
faust18 [17]

Answer:

idk

Step-by-step explanation:

i 123456788==3-4=2-5=06=20=0-54092=

Dont know 125887q2=5268-2654&+^[email protected]+^25^5#1=^5=2+56=426+

7 0
3 years ago
What is the answer for this question
Ugo [173]

Answer:

1 - 1/10

Step-by-step explanation:

As strange as it may seem, the easiest way to answer this question is to calculate the probability of selecting an elephant first and then to subtract this probability from 1:

Adding up the Numbers of animals, we get 12+4+3+11, or 30.  The probability of selecting an elephant is thus 3/30, or 1/10.

Thus, the probability of NOT selecting an elephant is 1 - 1/10 (Answer A).

5 0
3 years ago
Find 48% of 30. Please help
baherus [9]

Answer:

14.4 would be the answer hope this is helpful

Step-by-step explanation:

14.4/30= 48%

4 0
2 years ago
Read 2 more answers
What is the answer to 8/6+ - 9/5
Sindrei [870]

Answer:

-7/15

Step-by-step explanation:

get red of the addition and subtract the two fractions

3 0
3 years ago
Other questions:
  • jimmy and his family are on their way to visit some family friends who live 780 miles away from them.based on the route they cho
    10·1 answer
  • Solve this equation.<br> -3y≥72
    10·1 answer
  • Consider the initial value problemy' + 3 y = 36 t, y(0) = 6.Take the Laplace transform of both sides of the given differential e
    9·1 answer
  • Im too lazy to do this rn lol
    12·1 answer
  • What is 9x-2?????????????
    8·1 answer
  • PLEASE HELP ASAP!!!!
    14·1 answer
  • 11 pints is how may quarts
    15·1 answer
  • Number 7 please need help
    14·1 answer
  • How can i understand unit rates better
    14·2 answers
  • Can someone help me will give brainlist
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!