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
ioda
2 years ago
7

Please help me now

Mathematics
2 answers:
lesya692 [45]2 years ago
7 0
The answer to the question is A
Romashka [77]2 years ago
3 0

Answer:

A

Step-by-step explanation:

The answer should be A. If you rotate it around point A the rectangle would be up right on the x axis

You might be interested in
Workers at a certain soda drink factory collected data on the volumes​ (in ounces) of a simple random sample of 1818 cans of the
ohaa [14]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

Workers at a certain soda drink factory collected data on the volumes​ (in ounces) of a simple random sample of 18 cans of the soda drink. Those volumes have a mean of 12.19 oz and a standard deviation of 0.14 oz, and they appear to be from a normally distributed population.

If the workers want the filling process to work so that almost all cans have volumes between 12.02 oz and 12.66 ​oz, the range rule of thumb can be used to estimate that the standard deviation should be less than 0.16 oz. Use the sample data to test the claim that the population of volumes has a standard deviation less than 0.16 oz. Use a 0.01 significance level. Complete parts​ (a) through​ (d) below.

a. Identify the null and alternative hypotheses.  

b. Compute the test statistic.

c. Find the p-value.

d. State the conclusion.

Answer:

Null hypotheses = H₀: σ = 0.16  oz

Alternate hypotheses = H₁: σ < 0.16  oz

Critical value = 6.408

Chi-square value = \chi^2 = 13.016

Reject H₀  Since \chi^2 > Critical value

Reject H₀ Since p-value ≤ α

We have significant evidence at given significance level that the population of volumes has a standard deviation of less than 0.16 oz.

Step-by-step explanation:

Set up hypotheses:

The null hypotheses is that the population of volumes has a standard deviation of 0.16 oz

Null hypotheses = H₀: σ = 0.16  oz

The claim to be tested is that the population of volumes has a standard deviation of less than 0.16 oz

Alternate hypotheses = H₁: σ < 0.16  oz

Determine type of test:

Since the alternate hypothesis states that the population of volumes has a standard deviation of less than 0.16 oz, therefore we will use a lower-tailed chi-square test.

Determine the Critical value:

Given level of significance = 0.01

Since it is a lower-tailed test, the areas given in the chi-square table are the areas to the right of the critical value. To get the areas on the left, subtract it from  one, and then look it up

α = 1 - 0.01 = 0.99

degree of freedom = df = n - 1 = 18 - 1 = 17

The critical value from the chi-square table at α = 0.99 and df = 17 is found to be

Critical value = 6.408

Using an online “chi-square p-value calculator”

The left tail p-value for df = 17 and Critical value = 6.408 is found to be

p-value = 0.01

Set up decision rule:

Reject H₀ If  > Critical value

We reject the Null hypothesis If the calculated chi-square value is more than the critical value.

OR

Reject H₀ If p-value ≤ α

Compute the test statistic:

$ \chi^2 = \frac{(n-1) s^2}{\sigma^2} } $

$ \chi^2 = \frac{(18-1) 0.14^2}{0.16^2} } $

\chi^2 = 13.016

Conclusion:

We reject H₀

Since \chi^2 > Critical value

13.016 > 6.408

Also

p-value ≤ α

0.01 ≤ 0.01

We have significant evidence at given significance level that the population of volumes has a standard deviation of less than 0.16 oz.

5 0
2 years ago
There are 7 days in 1 week. some months consist of 30 days. how manu weeks are there in 280 days
Olegator [25]
You should divide 280 into 3 which would equal 9
4 0
2 years ago
Read 2 more answers
50 PTS
liubo4ka [24]

Answer:

The correct option is B.

Step-by-step explanation:

The amount of money, in dollars, in a savings account after x years is given by  M(x) = 10000(1.03)^{x}

This above equation represents that $10000 becomes M(x) after x years at a rate of interest 3% compounded in each year.

Therefore, the value in the expression 1.03 represents that there is a 3 percent increase in the savings account each year.

So, the correct option is B. (Answer)

8 0
3 years ago
You have a 36 foot fence that have a 4 equal side you painted 1/4 what fraction have you completed
k0ka [10]

we have completed 9/36=1/4 of the fence

5 0
2 years ago
Which step in the construction of copying a line segment ensures that the new line segment has
baherus [9]

Answer:

希 · 斯杰德布德克克贾克什伊索伊菲夫杰杰德克斯克克沃斯克维约沃沃

3 0
2 years ago
Read 2 more answers
Other questions:
  • For what x-value(s) does sin(x) = -1?
    15·1 answer
  • Which of the following is the number 0.008005 written in scientific notation?
    9·1 answer
  • the length of side AB is twice the length of side AC. Write an expression for the perimeter of the triangle
    10·1 answer
  • The average rate of increase per year?
    13·1 answer
  • Select the correct answer. Which number is located to the right of on the horizontal number line? A. -1 1/3 B. -2 1/3 C. -2 2/3
    9·1 answer
  • A line with a slope of 5 passes through the point (6, 12). Write the equation for this line.
    7·2 answers
  • In ABC, angle C is a right angle. Which statement must be true
    11·1 answer
  • Two trains, train a and train , weigh a total of 466 tons. Train A is heavier than train b. The difference of there weights is 3
    14·1 answer
  • Simplify the following expressions​
    10·1 answer
  • The temperature was 54° at 7:00am. At 3:00pm on the same day, the temperature
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!