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
Vaselesa [24]
2 years ago
9

A random sample of size 21 was taken from a normal population. the sample average was 9.87 and the sample sd was 1.17. at the si

gnificance level of 10%, what test should you use for testing whether the population mean equals 9.7?
Mathematics
1 answer:
Olin [163]2 years ago
6 0
You should be using a hypothesis test - One sample T test.   

The answer is given below.  

Test of mu = 9.7 vs not = 9.7  

The assumed standard deviation = 1.17    

N Mean SE Mean 90% CI Z P  

21 9.87000 0.25531 (9.45004, 10.28996) 0.67 0.506  

since P value is greater than 0.05 we accept the null hypothesis that the population mean equals 9.7
You might be interested in
2x= -10 what is x??????
Reptile [31]
The correct answer is X = -5
5 0
3 years ago
WHOEVER IS RIGHT GETS BRAINLIST
pochemuha
The answer to the first question is b
I don’t know the answer to the second one sorry
4 0
3 years ago
What is the quotient of 1+i/<br> 3+4i
gizmo_the_mogwai [7]

Answer: 7/25-1/25i

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Melanie invested $3,800 in an account paying an interest rate of 2 % compounded
GaryK [48]

Answer:

.85

Step-by-step explanation:

Compound interest formula

PV(1+\frac{i}{n})^{nt}

Melanie:

3800(1+\frac{.02}{4})^{(6*4)\\}\\=3800(1+.005)^{24}\\3800*1.1272=4283.21

Sebastian:

3800(1+\frac{.02}{12})^{12*6}\\3800(1.0017)^{72}\\3800*1.1274=4284.06

4824.06-4283.21= .85

4 0
3 years ago
I AM GIVING 35 POINTS TO WHOMEVER ANSWERS THIS!!!!
GuDViN [60]

Answer:

I believe the answer is D, but I'm not entirely sure.

Step-by-step explanation:

The Pythagorean theorem is A squared times B squared equals C squared. So your closest statement is D.

Let me know if I'm wrong

3 0
3 years ago
Read 2 more answers
Other questions:
  • .
    5·2 answers
  • Please help click on the image below
    12·1 answer
  • What is the area of the figure
    15·1 answer
  • Please help me!! thank you
    7·2 answers
  • A pet store Currently has a total of 45 cats and dogs. There are seven more cats than dogs. Find the number of cats and dogs in
    10·2 answers
  • Jason has a credit card that charges 2% interest on unpaid balances each month. He spent $300, but only makes the minimum paymen
    10·1 answer
  • NEED HELP ASAP !!!! How many points need to be removed From this graph so that it will be a function ?
    8·2 answers
  • What is the equation of a line that is parallel to the line
    7·1 answer
  • PLSSS HELP IF YOU TURLY KNOW THISS
    14·2 answers
  • Ummm how do I respond to someone who has come out me about their sexuality? I thought this girl was straight but she just told m
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!