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
valkas [14]
2 years ago
11

Help me please I need the domain of the function.

Mathematics
1 answer:
borishaifa [10]2 years ago
3 0

Answer:

Step-by-step explanation:

yea i dont know the the answer to that

You might be interested in
What multiplication product is represented by this grid
vlabodo [156]

Answer: 0.07 x 5

There are 35 colored out of the 100 = 35%

35% = 0.35 = 0.07 x 5

7 0
2 years ago
The diameters of bearings used in an aircraft landing gear assembly have a standard deviation of ???? = 0.0020 cm. A random samp
vovikov84 [41]

Answer:

(a) We conclude after testing that mean diameter is 8.2500 cm.

(b) P-value of test = 2 x 0.0005% = 1 x 10^{-5} .

(c) 95% confidence interval on the mean diameter = [8.2525 , 8.2545]

Step-by-step explanation:

We are given with the population standard deviation, \sigma = 0.0020 cm

Sample Mean, Xbar = 8.2535 cm   and Sample size, n = 15

(a) Let Null Hypothesis, H_0 : Mean Diameter, \mu = 8.2500 cm

 Alternate Hypothesis, H_1 : Mean Diameter,\mu \neq 8.2500 cm{Given two sided}

So, Test Statistics for testing this hypothesis is given by;

                           \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } follows Standard Normal distribution

After putting each value, Test Statistics = \frac{8.2535-8.2500}{\frac{0.0020}{\sqrt{15} } } = 6.778

Now we are given with the level of significance of 5% and at this level of significance our z score has a value of 1.96 as it is two sided alternative.

<em>Since our test statistics does not lie in the rejection region{value smaller than 1.96} as 6.778>1.96 so we have sufficient evidence to accept null hypothesis and conclude that the mean diameter is 8.2500 cm.</em>

(b) P-value is the exact % where test statistics lie.

For calculating P-value , our test statistics has a value of 6.778

So, P(Z > 6.778) = Since in the Z table the highest value for test statistics is given as 4.4172  and our test statistics has value higher than this so we conclude that P - value is smaller than 2 x 0.0005% { Here 2 is multiplied with the % value of 4.4172 because of two sided alternative hypothesis}

Hence P-value of test = 2 x 0.0005% = 1 x 10^{-5} .

(c) For constructing Two-sided confidence interval we know that:

    Probability(-1.96 < N(0,1) < 1.96) = 0.95 { This indicates that at 5% level of significance our Z score will lie between area of -1.96 to 1.96.

P(-1.96 <  \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } < 1.96) = 0.95

P(-1.96\frac{\sigma}{\sqrt{n} } < Xbar - \mu < 1.96\frac{\sigma}{\sqrt{n} } ) = 0.95

P(-Xbar-1.96\frac{\sigma}{\sqrt{n} } < -\mu < 1.96\frac{\sigma}{\sqrt{n} }-Xbar ) = 0.95

P(Xbar-1.96\frac{\sigma}{\sqrt{n} } < \mu < Xbar+1.96\frac{\sigma}{\sqrt{n} }) = 0.95

So, 95% confidence interval for \mu = [Xbar-1.96\frac{\sigma}{\sqrt{n} } , Xbar+1.96\frac{\sigma}{\sqrt{n} }]

                                                        = [8.2535-1.96\frac{0.0020}{\sqrt{15} } , 8.2535+1.96\frac{0.0020}{\sqrt{15} }]

                                                        = [8.2525 , 8.2545]

Here \mu = mean diameter.

Therefore, 95% two-sided confidence interval on the mean diameter

           =  [8.2525 , 8.2545] .

6 0
2 years ago
Read 2 more answers
What is the answer to 7/6 ÷ 8/7
jolli1 [7]
The answer to 7/6 divided by 8/7 would be 1 1/48
6 0
3 years ago
Read 2 more answers
A robot can complete 5 tasks in 3/4 hour each task takes the same amount of time a. how long does it take the robot to complete
slamgirl [31]

Answer:

Step-by-step explanation:

a. it takes 9 minutes for the robot to complete one task

b. In one hour then robot can complete 6.7 tasks  however since you reallly cant quantify .7 tasks the robot can only complete 6 tasks

4 0
2 years ago
Read 2 more answers
Which expressions can have the value of 9/20
wariber [46]

Answer:

9 DIVIDED BY 20 THAT IS BASICALLY AN EXPRESSION!

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Can someone please check this?
    7·1 answer
  • Evaluate the function at x = -2.
    12·1 answer
  • Homeroom 101 and homeroom 102 share a hallway bulletin board. if home room 101 uses 3/5 of their half of display artwork what fr
    8·1 answer
  • Solve for x.<br> x = log24
    15·1 answer
  • PLZ PLZ PLZ ANSWER THIS I HAVE NO IDEA WHAT RATIOS ARE!!!! <br> I WILL MARK THE BRAINLIEST!!!
    13·2 answers
  • Please answer 5 questions its urgent!
    11·1 answer
  • Recovery
    10·1 answer
  • Mark has $175 to spend on school clothes. He buys 4 shirts for $24 each, 2 pairs of shorts for $18 each, and 2 pairs of pants fo
    10·1 answer
  • Colin invests £5000 into his bank account.
    9·1 answer
  • Y is less than or equal to
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!