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
Romashka [77]
3 years ago
5

you want to compute a 95% confidence interval for the mean of a population with unknown population standard deviation. the sampl

e size is 30. the value of t* you would use for this interval is a) 1.645 b) 1.699 c) 1.96 d) 2.045​

Mathematics
1 answer:
makvit [3.9K]3 years ago
4 0
<h3>Answer: d) 2.045</h3>

Use either a table or a calculator to find this value. The t table should be found in the back of your stats textbook (if you dont have a textbook then you can find a free online t table by searching it out). See the attached image below for how I used a table to get the answer.

If you use a calculator, then you'll use the inverse T function. If n > 30, then you would be able to use a Z distribution instead of a T distribution which would mean that z = 1.96 is the critical value used. But instead, n = 30 does not make n > 30 true. Keep in mind that the degrees of freedom (df) are df = n-1 = 30-1 = 29.

You might be interested in
There are 158 people singed for a pie-making class They will be divided into groups. Each group will have 15. About how many gro
Reil [10]

they formed 11 groups

7 0
3 years ago
Read 2 more answers
Divide 2,756 into 1,375,244​
alexgriva [62]

Answer:

499

Step-by-step explanation:

you take 1,375,244/2,756=499

3 0
3 years ago
Read 2 more answers
Please help this is so confusing u can have 25 points if u help me
Elina [12.6K]

Step-by-step explanation:

Share 20pounds in the ratio 2:3

Total ratio=2+3=5

2/5×20=8

20-8=12

Sharing 20pounds in that ratio gives 8pounds:12pounds

Share 15cm in the ratio 1:3

Total ratio=1+4=4

¼×15=3.75

15-3.75=11.25

Sharing 15cm in that ratio gives 3.75:11.25

7 0
3 years ago
Leyla drops a penny from a height of 150m.
dusya [7]
Asked and answered elsewhere.
brainly.com/question/9071599
5 0
3 years ago
A refund of $274 dollars is apparently the answer... please help!
Westkost [7]
Taxable income = 3854
they have been taking taxes out in the amount of 344 for 12 months.....344* 12 = 4128....so they took out too much....so there is a refund of 4128 - 3854 =
274 refund
6 0
3 years ago
Other questions:
  • Find the 1st term of a sequence if the common difference = -2 and the 13th term =59
    13·1 answer
  • Which best describes the range of the function f(x) = 2/3(6)x after it has been reflected over the x-axis?
    9·2 answers
  • Which shows all the prime factors for 84?
    12·2 answers
  • 10. Which of the following functions is the inverse of the function {(1,2).(3,4).(6,8)) ? (1 point)
    14·1 answer
  • Calculate the distance between (-2 - 5i) and (1 + 3i)
    8·1 answer
  • What is 5/16 expressed as a percent?<br><br> Enter your answer in the box.
    5·1 answer
  • Levi's car used 8 gallons of gas to drive 280 miles. At what rate does his car use gas in gallons per mile? Express your answer
    11·1 answer
  • Order the decimals from least to greatest 7.508,5.2161,7.5,7.58
    10·2 answers
  • A car can travel 264 miles on 11 gallons of gasoline. How far can it travel on 2<br> gallons?
    10·2 answers
  • The answer to this question here 0.1x=0.2(x+2) <br> x=-4
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!