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
PIT_PIT [208]
3 years ago
6

An independent research firm conducted a study of 100 randomly selected children who were participating in a program advertised

to improve mathematics skills. The results showed no statistically significant improvement in mathematical skills, using a significance level of 0.05. The program is effective, which of the following would be an appropriate method for increasing power in this context?
a. Increase the sample size to 200 children.
b. Use a two-sided test instead of a one sided test.
c. Decrease the sample size.
d. Use alpha-0.01 instead of a-alpha.
e. Use a one sided test instead of a two-sided test.
Mathematics
1 answer:
kap26 [50]3 years ago
7 0

Answer:

b) use a two-sided test instead of a one sided test.

Step-by-step explanation:

If we are using a significance level of 0.05, then the two-tailed test assigns half alpha to test for statistical significance in one direction and half alpha to test statistical significance in the other direction. This implies that .025 is present in each tail of the test statistical distribution. When using the two-tailed test, regardless of the direction of the relationship you assume, we test the possibility of the relationship in both directions.

You might be interested in
O.6 as a mixed number
ella [17]

Answer:

3/5

Step-by-step explanation:

To make 0.6 as a fraction (you can't make it a mixed number because there is no number to the left of the point) place a 1 under it to make it a fraction:

0.6/1

Since you can't have a decimal on a fraction, multiply by 10;

0.6/1 × 10/10 =6/10

Simply your answer (6/10) to get 3/5

6 0
3 years ago
An 8 cm cube is cut into several small cubes of edge 2cm.how many cubes are formed ​
LiRa [457]
Its 8
not sure how to show the work but drew a pic and its 8
6 0
3 years ago
2. What are the solutions to the equation 6x2 - X - 40 = 0?
Andreas93 [3]

Answer:

x=-28

Step-by-step explanation:

you multiply the number first

and you calculate

then you move constant to the right

you changes the sign

done!

6 0
3 years ago
Will someone pls help asap
Strike441 [17]

Answer:

44

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the first step to converting from a fraction to a decimal ?
Lubov Fominskaja [6]

Answer:

To convert a fraction into a decimal, divide the top number by the bottom number. What about with denominators that don't divide into 10, 100 or 1000, such as 7? You still divide the denominator into the numerator, no matter what the numbers are.

Step-by-step explanation:

ok

8 0
3 years ago
Other questions:
  • A fast-food franchise is considering building a restaurant at a busy intersection. A financial advisor determines that the site
    14·1 answer
  • An equation for the line graphed is?
    7·2 answers
  • 180 mins is how many hours? <br> Hours:Minutes
    7·2 answers
  • Tyrone likes to snack on his big bag of candy. He takes 8 pieces of candy from the bag each time he snacks. After eating 18 snac
    12·1 answer
  • 202.01 has __________ significant figures * 1 point
    6·1 answer
  • Which number is a solution of the inequality 13.4 &lt; b<br> A. 17<br> B. 8<br> C. 10<br> D. 1
    13·1 answer
  • HELP! After finding the length of P explain the reasoning you used and I’ll give u brainliest!!
    6·1 answer
  • What are the roots of the equation?
    5·1 answer
  • Somebody help me with the question
    15·1 answer
  • This figure represents a platform on a stage. The stage crew needs to paint it black. One gallon of paint will cover 40 square y
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!