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
jarptica [38.1K]
3 years ago
13

1. Many Alpine ski centers base their calculations of revenues and profits on the belief that the average skier ski’s four times

a year with a population standard deviation of 2. To investigate this belief a random sample of 63 skiers was drawn and each participant was asked to report the number of times they skied last year. This yielded a mean of 4.84. Can we infer at the 10% significance level that the assumption of ski centers is wrong?
Mathematics
1 answer:
pshichka [43]3 years ago
6 0

Answer:

We cannot infer at the 10% significance level that the assumption of ski centers is wrong

Step-by-step explanation:

The null hypothesis for this question can be stated as  

Null hypothesis H0:  =4  

Alternate hypothesis Ha:  

The test is two tailed

Standard Deviation –  

 = 2

z=(4.84-4)/(2/sqrt(63))

=3.33

Z(0.1/2)=1.645 is less than Z =3.334

Hence, we will reject H0  

Hence, the average growth skier ski’s four times a year is not true  

You might be interested in
HURRY BRAINLIEST AND 40 POINTS!!!
grandymaker [24]

Answer:

The answer is the first one and the last one.

Step-by-step explanation:

If an account cost $1 and each song is 1.5x. It has to be less than or equal to 25. So it would be $1 for (the account plus) 1.5x for (how many songs he buys) is less than or equal to 25 (the ammount on the gift card).

8 0
3 years ago
Read 2 more answers
Jim had three waffles. He ate 1/6 of one waffle, and. 2/3 of another waffle. How many waffles were left?
Troyanec [42]
So find how much was eaten
1/6 and 2/3=eaten
add 1/6 and 2/3
convert bottom number to same
2/3=4/6
1/6+4/6=5/6
5/6 eaten
3-5/6=
2+1-5/6=
2+6/6-5/6=
2+1/6
2 and 1/6 waffles left
7 0
3 years ago
Read 2 more answers
PLEASE HELP......
Iteru [2.4K]
B is the answer i'm positive
7 0
3 years ago
Whats the answer plz?10 points!:)
jeyben [28]

Answer:


Step-by-step explanation:

f(x) = 3x + 1 and g(x) = x^2 - 6

(f + g) (x)

(3x + 1) + (x^2 - 6)

3x + 1 + x^2 - 6

3x - 5 - x^2

=> -x^2 + 3x - 5

I hope this helps!


7 0
3 years ago
Find the value for x
IgorC [24]

Answer:

180 - 2x + 180 - 4x + x = 180 \\ 360 - 5x = 180 \\ 180 = 5x \\ x = 36

5 0
3 years ago
Other questions:
  • I don't know where to start
    12·1 answer
  • A recipe that makes 8 jumbo blueberry muffins calls for 1 3/4 teaspoons of baking powder. How much baking powder is needed to ma
    8·1 answer
  • I need help please lol
    10·1 answer
  • Find the area of the figure below. *<br> 8 ft.<br> 12 ft.<br> 5 ft.<br> 15 ft.
    12·2 answers
  • At a large factory, the employees were surveyed and classified according to their level of education and whether they smoked. Th
    15·1 answer
  • Doug is in line at the store. He has three items that cost ​$4.50​, ​$3.05​, and ​$1.50. Explain how Doug can add the cost of th
    12·2 answers
  • Help me get this answer please
    8·2 answers
  • Solve for n.<br><br> –2(n + 2) + 6 = 8<br><br> n =
    12·2 answers
  • Express using algebra A stick l feet long is broken into 2 parts one of which is twice as long as the other. How long is the sho
    5·1 answer
  • What are the values of each Halloween icon? (Math Logic Puzzles) (78 POINTS)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!