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
Marina86 [1]
3 years ago
9

An industrial engineer is planning to test the claim that the mean cycle time of a particular assembly process is less than 10 m

inutes. She sets α = 0.05 and plans to take a SRS of 100 such processes and record the cycle time for each. If the true mean cycle time of the assembly process is 9.78 minutes the power of her test is 0.85. In all possible samples of size 100 she will:
Mathematics
1 answer:
Over [174]3 years ago
3 0

Answer:

Make a Type I error 15% of the time.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>In all possible samples of size 100 she will:</em>

  1. <em>Make a Type II error 5% of the time</em>
  2. <em>Reject the null hypothesis 15% of the time</em>
  3. <em>Make a Type I error 5% of the time</em>
  4. <em>Fail to reject the null hypothesis 85% of the time</em>

Option 2 and 4 are both false because we can not estimate this probabilitites a priori.

Option 1.

The power of a test is defined as the conditional probability of rejecting the null hypothesis, given that the alternative hypothesis is true.

Then, the power of the test is complementary of the probability of failing to reject the null hypothesis, gicen that the alternative hypothesis is true. The last is the definition of the probability of a Type II error.

This means that a power of 0.85 implies a probability of (1-0.85)=0.15 of making a Type II error.

P(Type \,II\, error)=1-Power=1-0.85=0.15

The option 1 ("Make a Type II error 5% of the time") is not precise, so it is not correct.

Option 3

The significance level is 0.05. This is also the probability of making a Type I error.

The option 3 ("Make a Type I error 5% of the time") is correct.

You might be interested in
Identity check was $58 if they gave the waiter a 20% tip how much did she spend in all
Svetllana [295]
69.6 is the answer to ur question










6 0
3 years ago
A new car is purchased for 19000 dollars. The value of the car depreciates at 11.25% per year. What will the value of the car be
ioda

Answer: The answer is 3573.64

Step-by-step explanation:

Exponential Functions:

y=ab^x

a=starting value = 19000

r=rate = 11.25%=0.1125

Exponential Decay:

b=1-r=1-0.1125=0.8875

Write Exponential Function:

y=19000(0.8875)^x

Plug in time for x:

y=19000(0.8875)^14

y= 3573.6388855

Evaluate :

y≈3573.64

5 0
3 years ago
A circular racetrack has a diameter of 1/2 mile. How far does a car travel in one lap around the track? Round to the nearest ten
dlinn [17]
Given:
Circular racetrack with a diameter of 1/2 mile

Find: how far does a car travel in one lap around the track?

We need to find the circumference of the racetrack.

Circumference is multiplying pi to the diameter of the racetrack.

Circumference = 3.14 * 1/2 mile
Circumference = 3.14/2 mile
Circumference = 1.57 miles rounded to the nearest tenth is 1.60 miles.
7 0
3 years ago
What is 34 x 222 x 4 5 - 67
erica [24]

Answer:

339593

<h2>Consider geting me brainliest if this helped</h2>

8 0
2 years ago
Read 2 more answers
Does this table represent a question?
Alexandra [31]
If we first look at  it doesn't look like a question. Maybe because it is incomplete, or we can assume that the table indicates that you must plot the x and y to show what image it is showing. But in the first impression. It is not a question
3 0
3 years ago
Other questions:
  • 5.378 E9. what is this number in standard form?
    8·2 answers
  • (07.01 MC) A set of numbers is shown below: {0, 0.8, 1, 3, 6} Which of the following shows all the numbers from the set that mak
    10·1 answer
  • If a 32 ft rope is cut into 2 sections with one section 7times as long as the other section how long is the shorter piece?
    7·1 answer
  • What is the variable "x" in the equation, 7/2=x/2, and why?
    6·1 answer
  • Stacy rowed across the lake with her friend Rainey (in the same boat) at a rate of 4 mph. Rainey then rowed back at a rate of 3
    6·2 answers
  • Word problem plz help pt.1​
    8·1 answer
  • Suppose you select two numbers at random with replacement from the set {1, 2, 3} and then you form a rectangle with the first nu
    14·1 answer
  • Help me with question 1 please!
    10·1 answer
  • Patrick ate 3/5 of a small pizza on Friday night. For lunch on Saturday , he ate 1/2 of the leftover pizza. How much pizza did h
    13·2 answers
  • What’s the equation for f and g?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!