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
Solve for d. -5d – 16d + -14d + 8d – -13d = -14
gizmo_the_mogwai [7]
-5d – 16d + -14d + 8d – -13d = -14
-5d-16d-14d+8d+13d=-14
-21d-14d+8d+13d=-14
-35d+8d+13d=-14
-27d+13d=-14
-14d=-14
÷-14 both sides
d=1
4 0
3 years ago
Select the correct answer.
TEA [102]
66 degrees

Add 30, 57, and 27, then subtract from 180
7 0
3 years ago
Read 2 more answers
Which of the following factors contributes the most to the calculation of FICO scores?
Alenkasestr [34]
<span>B.) Payment History I believe. 

Hope this helps. c:</span>
3 0
3 years ago
Read 2 more answers
Juana threw five darts at a dartboard. The possible scores on the target were 2, 4, 6, 8, and 10. Each dart hit the target. Whic
Salsk061 [2.6K]

Answer:

Not possible scores: 6, 15, 23, 31 and 58.

Step-by-step explanation:

We have been given that Juana threw five darts at a dartboard. The possible scores on the target were 2, 4, 6, 8, and 10. Each dart hit the target. We are asked to choose the total scores that can be quickly identified as "not possible".

Given scores: 38, 23, 58, 30, 42, 31, 26, 6, 14, or 15.

Since the maximum score is 10 and number of hits are 5, therefore, the maximum score can be hitting 10 each of the 5 times.

10\times 5=50

Since the maximum score is 50, therefore, 58 is an impossible score.

Since the minimum score is 2 and number of hits are 5, therefore, the minimum score can be hitting 2 each of the 5 times.

2\times 5=10

Since the minimum score is 10, therefore, 6 is an impossible score.

Since all scores on board are even, so the sum of 5 hits must be even, therefore, odd numbers like 15, 23, 31 are not possible scores.  

5 0
3 years ago
If a certain factory produces 24 Pepsi bottles of one liter capacity each in 12 minutes,
vaieri [72.5K]

Answer:

It produces 120 bottles in one hour.

Step-by-step explanation:

This question can be solved by proportions.

24 Pepsi bottles of one liter capacity each in 12 minutes

24/12 = 2 bottles per minute.

How many Pepsi bottles does it produce in one hour?​

One hour has 60 minutes. So

60*2 = 120

It produces 120 bottles in one hour.

5 0
3 years ago
Other questions:
  • Please Help ASAP C: :D
    7·1 answer
  • Jeremy drew a polygon with four right angles and four sides with the same length. Name all the polygons that he could have drawn
    12·1 answer
  • On a normal distribution of iq test scores, with a mean of 100 and a stadard deviation of 15 points, a score of 70 would place y
    14·1 answer
  • 12x−39≤9 AND−4x+3&lt;−6, just solving for x<br><br> please answer ASAP
    6·1 answer
  • Goofy Golf ticket prices for kids under 12 years of age increased from $4.00 to $6.00 this year. What is the percent of increase
    13·2 answers
  • Emilio throws a marshmallow into the air from his balcony. The height of the marshmallow (in feet) is represented by the equatio
    13·1 answer
  • John has a bag of marbles There are 3 green, 4 blue, 2 red and 1 yellow. What is the probability of him getting a green or blue?
    11·1 answer
  • If the perimeter of a square is 4x - 24, what is the<br> area of the square?
    13·1 answer
  • A rectangle has vertices E (-4,8), F(2,8), G(2,-2) and H (-4,-2). The rectangle is dilated with the origin as the center of dila
    7·1 answer
  • two coins are flipped then a card is drawn. there are how many total outcomes? deck is 52 and coins are fair.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!