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
zzz [600]
3 years ago
10

A study was designed to compare the attitudes of two groups of nursing students towards computers. Group 1 had previously taken

a statistical methods course that involved significant computer interaction. Group 2 had taken a statistic methods course that did not use computers. The students' attitudes were measured by administering the Computer Anxiety Rating Scale (CARS). A random sample of 10 nursing students from Group 1 resulted in a mean score of 60.7 with a standard deviation of 6.9. A random sample of 15 nursing students from Group 2 resulted in a mean score of 66.3 with a standard deviation of 5.8. 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. Step 1 of 4 : State the null and alternative hypotheses for the test.
Mathematics
1 answer:
NeX [460]3 years ago
3 0

Answer:

wowrjdndndnfnf dmdi fufu diff fjf fjf fifth f ouch r f ik r fir fir rir tir t

You might be interested in
Mary and Julie both have a goal of raising $1000 for charity. Mary raises $12 every 4 days. Julie raises $19 every 6 days.
baherus [9]
Julie would reach her goal first. Julie would reach her goal in approximately 316 days while it would take Mary approximately 333 days to reach it.

I know this because the steps to solve the problem are:

1.) 1,000/12 = 83.333 (to find how many days it would take her everyday)

2.) 83.333x4 = 333 (multiplying the answer by four makes it every four days)

3.) determine that it takes Mary 333 days

4.) 1,000/19 = 52.631 (just like step 1 but with different numbers)

5.) 52.631x6 = 316 (just like in step 2 but different numbers)

6.) determine it takes Julie 316 days

7.) 316 < 333 (takes Julie less time)
6 0
3 years ago
Read 2 more answers
How do ypu slove dis? <br>y^2(q-4) - c(q - 4)
Annette [7]
<span><span> y2(q-4)-c(q-4)</span> </span>Final result :<span> (q - 4) • (y2 - c) </span>

Step by step solution :<span>Step  1  :</span><span>Equation at the end of step  1  :</span><span><span> ((y2) • (q - 4)) - c • (q - 4) </span><span> Step  2  :</span></span><span>Equation at the end of step  2  :</span><span> y2 • (q - 4) - c • (q - 4) </span><span>Step  3  :</span>Pulling out like terms :

<span> 3.1 </span>     Pull out     q-4 

After pulling out, we are left with : 
      (q-4) • (<span> y2</span>  *  1 +( c  *  (-1) ))

Trying to factor as a Difference of Squares :

<span> 3.2 </span>     Factoring: <span> y2-c</span> 

Theory : A difference of two perfect squares, <span> A2 - B2  </span>can be factored into <span> (A+B) • (A-B)

</span>Proof :<span>  (A+B) • (A-B) =
         A2 - AB + BA - B2 =
         A2 <span>- AB + AB </span>- B2 = 
        <span> A2 - B2</span>

</span>Note : <span> <span>AB = BA </span></span>is the commutative property of multiplication. 

Note : <span> <span>- AB + AB </span></span>equals zero and is therefore eliminated from the expression.

Check : <span> y2  </span>is the square of <span> y1 </span>

Check :<span> <span> c1  </span> is not a square !! 
</span>Ruling : Binomial can not be factored as the difference of two perfect squares

Final result :<span> (q - 4) • (y2 - c) </span><span>
</span>
4 0
3 years ago
how.can you write the prime factorization and find the greatest common factor and the least common multiple of two numbers​
alisha [4.7K]

Answer:

Step-by-step explanation: you just need to find the greatest factors and least multiple then do it to two numbers

3 0
3 years ago
A rectangle has a height of 5x and a width of x + 2. Express the area of the entire rectangle.
o-na [289]
Rectangle Area = length • width

5x • (x + 2) = area

(5x^2 + 10x) is the area, with no further ways to simplify.
8 0
2 years ago
What is the equation of the line that has a slope of 1/3 and goes through the point (6, -2)?
Andru [333]

Answer:

y=1/3x-4

Step-by-step explanation:

plug this equation into Desmos, a graphing calculator site, and the point and you can see it goes right through it! i hope this helped!

4 0
2 years ago
Other questions:
  • What is the approximate circumference of the circle? Use π ≈ 3.14. Circle A with radius 18 feet. 21.1 feet 36 feet 56.5 feet 113
    9·2 answers
  • 1) What is the solution to x - 5 = 27?
    9·1 answer
  • Find the selling price<br><br><br>Cost to store: $90<br><br>Markup: 60%
    5·1 answer
  • Simplify 8/12 completely.<br> 6/10<br> O 4/8<br> 2/3<br> O 4/6
    9·2 answers
  • If x and y vary inversely and x = 1 when y = 11, find x when y = 5.5.
    6·1 answer
  • Find the value of x
    12·2 answers
  • Subtract (5u + 6v) from (8u + 10v)
    6·2 answers
  • 2/5 kilogram of soil fills 1/3 of a countainer. Can 1 kiligram of soil fit in the container?
    5·1 answer
  • 55.7 degrees is the same as 55 degrees _____' 12"
    15·1 answer
  • How does the distributive property work
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!