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
The figure below is made up of two rectangles.
Dmitry [639]

Answer:

Total area of figure = [3x² + 7x + 6] feet²

Step-by-step explanation:

By dividing both rectangle by vertical line;

Given:

Length of big rectangle = (x + 3) feet

Width of big rectangle = (x + 2) feet

Length of small rectangle = 2x feet

Width of small rectangle = (x + 1) feet

Find:

Total area of figure

Computation:

Area of rectangle = Length x width

Total area of figure = Area of big rectangle + Area of small rectangle

Total area of figure = [(x + 3)(x + 2)] + [(2x)(x + 1)]

Total area of figure = [x²+ 2x + 3x + 6] + [2x² + 2x]

Total area of figure = [3x² + 7x + 6] feet²

7 0
2 years ago
Gud morning friends how are you plz follow me please follow me ❤️❤️​
iren2701 [21]

Answer:

ok i will

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Sherlock Holmes was sitting comfortably on an armchair on a snowy day. Dr. Watson was sitting beside him reading a book near the
ladessa [460]
The riddle given by Dr. Watson to Sherlock Holmes is:

217 is to 335
896 is to 543
345 is to ____

We need to find the missing number of the third pair of the riddle. This is a ratio and proportion problem.

217/ 335 = 896/ 543 = 345 / x

The value of x is 209. 
8 0
3 years ago
A washing machine sells for $201 after being discounted by 40 percent. What was the original price of the washing machine?
olga_2 [115]

Step-by-step explanation:

Let original price be x

Price after 40% discount is $201

Therefore

x × 40% = $201

x = 201 ÷ (40/100)

x = 502.5

Therefore, the original price is $502.5

Hope it helps :)

5 0
3 years ago
What is the answer 47 * 63
Anuta_ua [19.1K]
<h3>47 × 63 = <u>2961</u></h3>

<h3>... Hope this will help... </h3>

<h3>U can also verify the answer using a calculator </h3>
8 0
2 years ago
Other questions:
  • in how many year will rs 8000 amount to rs 13824 at 20% per annum interest compounded annually? please please help me out​
    9·1 answer
  • Which unit rate is the lowest price a.6oz of chocolate chips for $2.49
    15·1 answer
  • Of all the Sunny Club members in a particular city, 25% prefer swimming on weekends and 75% prefer swimming on weekdays. It is f
    10·2 answers
  • Graph the equation 2y-6x=10
    5·1 answer
  • If 100 people get on a train at Liverpool station at 10:25 A.M, and 40 get off at London station at 11:06 A.M, how much is a cup
    5·1 answer
  • If it take Tracy 1/4 of an hour to do her homework,and it takes Trent 3/4 of an hour to do his homework,how much total time does
    13·2 answers
  • The table shows values of f(x) .
    6·2 answers
  • In how many ways can a group of 3 men and 3 women be arranged if the women insist on being next to each other?
    14·1 answer
  • PLEASE HELP I WILL MAKE BRAINLIST
    14·1 answer
  • Please help I have been stuck for a while now
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!