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
bonufazy [111]
3 years ago
10

Please help!!!!!!!!!!

Mathematics
1 answer:
BabaBlast [244]3 years ago
7 0

Answer:

12

Step-by-step explanation:

ez claps pie

You might be interested in
A circle has a radius of 3. An arc in this circle has a central angle of 20 degrees.
TiliK225 [7]

Answer:

π/3 units

Step-by-step explanation:

arc length = 2πr(°/360)

                 = 2π*3(20/360)

                 = π/3 units

4 0
3 years ago
ASAP!!!!!!!<br><br> y-13=4(x-2)
Juliette [100K]
Y-13=4(x-2)
y-13=4x-8
y=4x+5
5 0
3 years ago
Quantitative noninvasive techniques are needed for routinely assessing symptoms of peripheral neuropathies, such as carpal tunne
Pavlova-9 [17]

Answer:

t=\frac{2.35-1.83}{\sqrt{\frac{0.88^2}{10}+\frac{0.54^2}{7}}}}=1.507  

p_v =P(t_{(15)}>1.507)=0.076

If we compare the p value and the significance level given \alpha=0.01 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and the group CTS, NOT have a significant higher mean compared to the Normal group at 1% of significance.

Step-by-step explanation:

1) Data given and notation

\bar X_{CTS}=2.35 represent the mean for the sample CTS

\bar X_{N}=1.83 represent the mean for the sample Normal

s_{CTS}=0.88 represent the sample standard deviation for the sample of CTS

s_{N}=0.54 represent the sample standard deviation for the sample of Normal

n_{CTS}=10 sample size selected for the CTS

n_{N}=7 sample size selected for the Normal

\alpha=0.01 represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

p_v represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean for the group CTS is higher than the mean for the Normal, the system of hypothesis would be:

Null hypothesis:\mu_{CTS} \leq \mu_{N}

Alternative hypothesis:\mu_{CTS} > \mu_{N}

If we analyze the size for the samples both are less than 30 so for this case is better apply a t test to compare means, and the statistic is given by:

t=\frac{\bar X_{CTS}-\bar X_{N}}{\sqrt{\frac{s^2_{CTS}}{n_{CTS}}+\frac{s^2_{N}}{n_{N}}}} (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other".

Calculate the statistic

We can replace in formula (1) the info given like this:

t=\frac{2.35-1.83}{\sqrt{\frac{0.88^2}{10}+\frac{0.54^2}{7}}}}=1.507  

P-value

The first step is calculate the degrees of freedom, on this case:

df=n_{CTS}+n_{N}-2=10+7-2=15

Since is a one side right tailed test the p value would be:

p_v =P(t_{(15)}>1.507)=0.076

We can use the following excel code to calculate the p value in Excel:"=1-T.DIST(1.507,15,TRUE)"

Conclusion

If we compare the p value and the significance level given \alpha=0.01 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and the group CTS, NOT have a significant higher mean compared to the Normal group at 1% of significance.

6 0
3 years ago
If 2 angles in a triangle are 71 degrees and 56 degree, what is the measure of the third angle?
ICE Princess25 [194]

Answer:

53

Step-by-step explanation:

Sol'n

Let the remaining angle of a triangle be x.

x+71+56=180 (Sum of angles of a triangle is 180°)

or, x+127=180

or, x=180-127

.:, x=53°

.:, The measure of third angle is 53°

8 0
2 years ago
a ruby throated hummingbird beats its wings 159 times in 3 seconds how many times does he ruby throated humming beat its wing pe
mina [271]
159 times in 3 seconds = 159/3 = 53 times per second <==
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the measure in degrees of &lt;ABC?
    11·2 answers
  • What is greater 16.5 or 16.52
    6·2 answers
  • Is Erik's statement correct? Why or why not?
    11·2 answers
  • An architect designs a rectangle flower garden such that the width is exactly two thirds of the length. If 310 feet of antique p
    5·2 answers
  • PLEASE HELP IMAGE ATACHED
    7·1 answer
  • Please help! Idk what to do I've tried so many ways.
    13·2 answers
  • In square YOLA, RL=5x+28 and RO=8X-11
    14·1 answer
  • Anyone know the answer to this?
    10·1 answer
  • SOMEONE PLEASE HELP! ITS ALMOST DUE!
    9·2 answers
  • PLEASE HELP ME!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!