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
yulyashka [42]
3 years ago
5

Please answer, i just need the answer, no explanation. thank you so very much

Mathematics
1 answer:
galben [10]3 years ago
8 0
A. Given that the program was targeted at adults, there is a 37.5% chance that it was recorded.
You might be interested in
The width of a rectangle is 4 inches less than the length. The perimeter is 60 inches. Find the length and the
coldgirl [10]

Answer:

Length=17

width=13

Step-by-step explanation:

W=width

L=length

Perimeter = 2w+2l since it's a rectangle

W=l-4 (given)

Plug into perimeter equation

Perimeter =(2l-8)+2l

=4l-8

60=4l-8

68=4l

17 =l

W=l-4=17-4=13

6 0
3 years ago
PLS HELPPPPPPPPPPPPPPPPP IM GONNA FAIL
DochEvi [55]

Answer:

2520 cm²

Step-by-step explanation:

9 cm x 8 cm x 5 cm x 7cm = 2520 cm²

8 0
3 years ago
Read 2 more answers
1. There is 1 /2cupcake left from Henry's birthday party. Henry and his friend want to share it equally. What fraction of a cupc
almond37 [142]

Answer:

1/4

Step-by-step explanation:

3 0
3 years ago
You are the engineer in charge of evaluating a new product for potential use in a hydraulic system. The manufacturer has sent 10
Allushta [10]

Answer:

a) The null hypothesis is represented as

H₀: p ≥ 0.08

The alternative hypothesis is represented as

Hₐ: p < 0.08

b) A type I error for this question would be that

we conclude that the proportion of defective products is less than 8% when in reality, the proportion of defective products, is more than or equal to 8%.

c) At most, the number of defective products in the sample for you to agree to use the new product = 7

d) If minimum of 5000 pieces are purchased, 90% confidence interval for minimum number of flawed pieces will be (103, 497)

Step-by-step explanation:

For hypothesis testing, the first thing to define is the null and alternative hypothesis.

The null hypothesis plays the devil's advocate and is usually stating the opposite of the theory is being tested. It usually maintains that random chance is responsible for the outcome or results of any experimental study/hypothesis testing. It usually contains the signs =, ≤ and ≥ depending on the directions of the test.

While, the alternative hypothesis takes the other side of the hypothesis; that there is indeed a significant difference between two proportions being compared. It usually confirms the the theory being tested by the experimental setup. It usually maintains that other than random chance, there are significant factors affecting the outcome or results of the experimental study/hypothesis testing. It usually contains the signs ≠, < and > depending on the directions of the test

For this question, we want to prove that less than 8% of the products we subsequently purchase will be defective.

So, the null hypothesis will be that there is not enough evidence in the sample to say that less than 8% of the products we subsequently purchase will be defective. That is, the proportion of the sample that are defective is more than or equal to 8%.

And the alternative hypothesis is that there is enough evidence in the sample to say that less than 8% of the products we subsequently purchase will be defective.

Mathematically,

The null hypothesis is represented as

H₀: p ≥ 0.08

The alternative hypothesis is represented as

Hₐ: p < 0.08

b) A type I error involves rejecting the null hypothesis and accepting the alternative hypothesis when in reality, the null hypothesis is true. It involves saying that there is enough evidence in the sample to say that less than 8% of the products we subsequently purchase will be defective when in reality, there isn't enough evidence to arrive at this conclusion.

That is, the proportion of defective products in reality, is more than or equal to 8% and we have concluded that the proportion is less than 8%.

c) Out of the 100 samples provided by the manufacturer, at most how many can be defective for you to agree to use the new product?

The engineer agrees to use the new product when less than 8% of the products we subsequently purchase will be defective.

8% of the product = 0.08 × 100 = 8.

Meaning that the engineer agrees to subsequently purchase the product if less than 8 out of 100 are defective.

So, the maximum number of defective product in the sample that will still let the engineer purchase the products will be 7.

(d) For better or worse, your boss convinces you to go through with the deal. Turns out the minimum order is 5000 pieces. Assuming you purchase that many pieces of the new product, and that you found 6 defective pieces out of the 100, generate a 90% two-sided confidence interval for the number of pieces that will be flawed.

Confidence Interval for the population proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample proportion) ± (Margin of error)

Sample proportion = 0.495

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error)

Critical value at 90% confidence interval for sample size of 100 using the t-tables since information on the population standard deviation.

Degree of freedom = n - 1 = 100 - 1 = 99

Significance level = (100-90)/2 = 5% = 0.05

Critical value = t(0.05, 99) = 1.660

Standard error of the mean = σₓ = √[p(1-p)/n]

p = 0.06

n = sample size = 100

σₓ = (0.06/√100) = 0.006

σₓ = √[0.06(0.94)/100] = 0.0237486842 = 0.02375

90% Confidence Interval = (Sample proportion) ± [(Critical value) × (standard Error)]

CI = 0.06 ± (1.660 × 0.02375)

CI = 0.06 ± 0.039425

90% CI = (0.020575, 0.099425)

90% Confidence interval = (0.0206, 0.0994)

If minimum of 5000 pieces are purchased, 90% confidence interval for minimum number of flawed pieces will be

5000 × (0.0206, 0.0994) = (103, 497)

Hope this Helps!!!

3 0
3 years ago
Which point is the same distance from the y-axis but on the opposite side of the y-axis as point C?
bixtya [17]

Answer: The answer would be 5.2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the following quadratic equation by the square root property of equality. <br> (x-8)^2=48
    12·1 answer
  • Please help me Will mark brainiest
    11·2 answers
  • How many unique triangles can be made where one angle measures 60° and another angle is an obtuse angle? 1 2 More than 2 None
    6·2 answers
  • What is the change in temperature from 15° to -9°?<br> (the choices in the docx)
    11·1 answer
  • Write the next three terms of the arithmetic sequence.
    13·2 answers
  • The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?
    6·1 answer
  • Select all the sets of numbers that are possible values for x in the inequality, x&gt;- 2.
    7·1 answer
  • First anserw gets brainest 8th grade, root squared question
    6·1 answer
  • Can someone please solve for x
    14·1 answer
  • What is the system of inequalities associated with the following graph?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!