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
TiliK225 [7]
3 years ago
14

Find the critical value t for the confidence level c= 0.98 and sample size n=7.

Mathematics
1 answer:
kenny6666 [7]3 years ago
8 0

Answer:

The critical value is T = 3.143.

Step-by-step explanation:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 7 - 1 = 6

98% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.98}{2} = 0.99. So we have T = 3.143.

The critical value is T = 3.143.

You might be interested in
‼️GEOMETRY‼️
ella [17]

Answer:

A.) 1018 square inches

Step-by-step explanation:

The largest sphere will have a diameter equaling the length of the cube (see picture).

If the side length of the cube is 18 inches, the diameter of the sphere is also 18 inches. Use the surface area formula for a circle:

SA=4\pi r^2

For this formula, we need the radius of the sphere. Divide the diameter by 2:

\frac{18}{2}=9

The radius is 9 inches. Plug this into the equation:

SA=4\pi *9^2

Simplify the equation:

SA=4\pi *81\\\\SA=324\pi \\\\SA=1017.87

Round the result to the nearest whole number:

1017.87 → 1018

The surface area is 1,018 inches².

:Done

Picture:

In a 2D version, we can clearly see that if the circle fits snuggly inside of the square, the diameter of a sphere is the same as the length of a side of the cube.

6 0
3 years ago
3x + 2 = -13. Plz help
mote1985 [20]
The answer is -5 hope this helps

3 0
3 years ago
Read 2 more answers
Branliest offered<br> solve the proportion<br> 12/x=6/7<br> 6x/4=8/12<br> 7/x+13=4/12<br> y+5/y=10/8
Tju [1.3M]
12/x=6/7 answer: x=14
6x/4=8/12 answer x = 0.4444444444
7/x+13=4/12 answer x=8
y+5/y=10/8 answer y=20
6 0
3 years ago
Find the value of p:<br> 14 = -7 + p/6​
kondaur [170]
126/6=21
21 + -7 = 14
The p = 126 because the equation is now correct :D
3 0
3 years ago
The subtotal of your computer purchase was $398.50. If the sales tax rate is
pav-90 [236]

453.46

Step-by-step explanation:

398.50/7.25=54.96

398.50+54.96=453.46

7 0
3 years ago
Other questions:
  • Graph and solve the system <br><br> Y=-3x+3<br> Y=2x-7
    12·2 answers
  • A recent National Health and Nutrition Examination Survey (NHANES) study compared death rates for people with health insurance a
    13·1 answer
  • What is the solution of the system? Use elimination.
    10·1 answer
  • Please help!!!!! Really need help it’s for final exam
    12·2 answers
  • What is the reason these triangles are congruent <br> a. SSS<br> B. SAS<br> C. not congruent
    14·2 answers
  • . . . . . . . . . . . . . . . . . . . ________
    15·2 answers
  • Maya has 200 songs on her cell phone. 48 songs are K-Pop. What ​percent​ of Maya's songs are K-Pop?
    15·1 answer
  • Percent change when a price of £50 is decreased to £48
    15·1 answer
  • I-ready math pls help
    14·1 answer
  • 2. Maria is monitoring the temperature of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!