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
sashaice [31]
3 years ago
5

Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate: (a) find the critical value t

Subscript alpha divided by 2​, ​(b) find the critical value z Subscript alpha divided by 2​, or​ (c) state that neither the normal distribution nor the t distribution applies.
The confidence level is 95​%, sigma is not​ known, and the histogram of 60 player salaries​ (in thousands of​ dollars) of football players on a team is as shown.

Mathematics
1 answer:
allochka39001 [22]3 years ago
6 0

Answer:

Neither the normal distribution nor the t distribution applies.

Step-by-step explanation:

Hello!

The histogram attached shows the salary (in dollars) of 63 football players.

As you can see most of the values of this distribution are around 0 and the distribution is extremely asymmetrical (right skewed).

To apply a t-test to study the population average the population has to have a normal distribution.

The same goes for the standard normal distribution, but in this case, considering that the sample is large enough (n≥30) you can apply the Central Limit Theorem and approximate the distribution of the sample mean to normal X[bar]≈N(μ;δ²/n), but since the population variance is unknown, this is also not applicable.

The correct choice is the last one, since the conditions to apply the t test and the standard normal are not met.

I hope this helps!

You might be interested in
Which congruence theorem can be used to prove △ABC ≅ △DBC?
Tema [17]

Answer:

SAS

Step-by-step explanation:

Hope this helps :)

7 0
3 years ago
What is 3 1/2 times 5 2/3 equal to in simplest form?
VladimirAG [237]

Answer:1 13\21

Step-by-step explanation:make the mixed numbers to improper fractions then multiply

3 0
3 years ago
Read 2 more answers
Assuming n1=n2, p1=.4, p2=.7, sampling error=.0 and confidence interval of 99%, estimate (p1-p2)?
Black_prince [1.1K]

Answer:

Step-by-step explanation:

7 0
3 years ago
Absolute value of -4 1/2
iragen [17]

Answer: 4 1/2

Step-by-step explanation:

4 0
3 years ago
What is 5.60 equivalent to
frosja888 [35]
As a fraction:
5  6/10
560/100
5  3/5

as a decimal:
5.6
5.6000
5 0
3 years ago
Other questions:
  • What is 1/15 as a decimal
    7·2 answers
  • Laisha saved $20 053 She Spent $8995 how much does she have left
    13·1 answer
  • Which of the following is equal to the rational expression when x=-1 or -7? (x+1)(x-1)/(x+7)(x+1) a. x+7/x-1 b. x-1/x+7 c. x+1/x
    12·1 answer
  • Will give Brainliest! if right!
    6·1 answer
  • Consumer Reports will have an article comparing refrigerators in the next issue. Some of the characteristics to be included in t
    12·1 answer
  • Jenny ran 4 4/5 miles on Saturday and 6 2/5 miles on sunday. How many miles should she run on monday if she wants her average ru
    8·1 answer
  • School QUICK CARE
    7·1 answer
  • Enter 2/5 and 1/3 as a pair of equivalent fractions with the least common denominator between the two fractions.
    11·1 answer
  • Which is a peoperty of an angle
    10·2 answers
  • Solve the proportion 7/5=21/x<br> (show work/explain how u got it please)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!