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
Alenkinab [10]
3 years ago
9

A random sample of 11 nursing students from Group 1 resulted in a mean score of 41.3 with a standard deviation of 6.8. A random

sample of 14 nursing students from Group 2 resulted in a mean score of 54.8 with a standard deviation of 6. Can you conclude that the mean score for Group 1 is significantly lower than the mean score for Group 2? Let μ1 represent the mean score for Group 1 and μ2 represent the mean score for Group 2. Use a significance level of α=0.1 for the test. Assume that the population variances are equal and that the two populations are normally distributed.
Mathematics
1 answer:
Lina20 [59]3 years ago
6 0

Answer:

At 1% significance level,  this difference is considered to be extremely statistically significant.

Step-by-step explanation:

 Group   Group One     Group Two  

Mean 41.300 54.800

SD 6.800 6.000

SEM 2.050 1.604

N 11      14      

H0: Mean of group I = Mean of group II

Ha: Mean of group I < mean of group II

(Left tailed test at 1% significance level)

  The mean of Group One minus Group Two equals -13.500

 standard error of difference = 2.563

 t = 5.2681

 df = 23

 p value= 0.00005

Since p < significance level, reject H0

You might be interested in
Digit realizes that some members of the audience cannot see the bride and groom due to the current seating arrangement. Therefor
DiKsa [7]

Answer:

A dilation

Step-by-step explanation:

i

3 0
2 years ago
May u please help me ill give out the brainly
Sedaia [141]

Answer: The answer that I think is A

sry if wrong

8 0
2 years ago
Read 2 more answers
Are the triangles shown below similar? Please explain why or why not.
erica [24]

Yes

Angles r congruent

5 0
3 years ago
Read 2 more answers
Erin wants to equally divide oatmeal bars among 5 friends. If she has 12 bars, how many bars will each friend receive
Digiron [165]

Answer:

each friend will receive 2 oatmeal bars and their will be 2 leftover.

Step-by-step explanation:

6 0
3 years ago
A town has a population of 13,000 and grows at 5% every year. What will be the population after 11 years to the nearest whole nu
timofeeve [1]

Answer:

So all you need to do is find 5% of 13000 which is 650.

Now 650 times 11= 7150

13000+ 7150=

20,150

6 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangular plot of land is 1 1/2 miles wide by 2 4/5 miles long. What is it's area
    6·1 answer
  • PLEASE HELP A barrel in Jim's yard contains 60 gallons of water. Water leaks out of the barrel at a rate of 1 gallon every 10 mi
    12·1 answer
  • mark borrowed $125 from his dad to pay some bills. if he had already paid back $30 how much does he still owe
    11·2 answers
  • the area of the flag is 96 feet square feet. what is the perimeter of the flag if it has a length of 12 feet
    15·1 answer
  • Colin and Brian were playing darts. Colin scored 62. Brian scored 59 more than Colin. What was their combined score?
    6·2 answers
  • Which relation is a function?
    15·1 answer
  • Which is equivalent to 3√8^x<br><br> X√8^3<br><br> 8^3/x<br><br> 8^x/3<br><br> 8^3x
    8·1 answer
  • An automobile manufacturer is concerned about a fault in the braking mechanism of a particular model. The fault can, on rare occ
    5·1 answer
  • PLEASEEE HELPPPPPPP
    9·1 answer
  • Guys plz help me answer this !!!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!