10/01/20

Statistics and probabilities

Hippolyta Freeman was testing whether 25 employees at a department store sell more shoes to customers if they had free coffee in the break room compared to the population of employees who sell an... more
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10/01/20

Statistics and probabilities

Hippolyta Freeman was testing whether 25 employees at a department store sell more shoes to customers if they had free coffee in the break room compared to the population of employees who sell an... more
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10/01/20

Statistics and probabilities

Atticus Freeman was testing whether 45 sci-fi books have a different number of graphics compared to the average book, which has 10 graphics.What is the null hypothesis?
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10/01/20

Statistics and probabilities

If you have a two-tailed test with an alpha () is 0.01, what is the critical value?
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10/01/20

Statistics and probabilities

If you have a one-tailed test with an alpha () is 0.05, what is the critical value?
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10/01/20

What is the probability that the sample proportion will be at least 2 percent more than the population proportion?
In a recent year, the Better Business Bureau settled 75% of complaints they received. You have been hired by the Bureau to investigate complaints this year involving computer stores. You plan to... more
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10/01/20

What is the probability that the sample proportion is between 0.2 and 0.42?
Based on historical data, your manager believes that 29% of the company's orders come from first-time customers. A random sample of 166 orders will be used to estimate the proportion of... more
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10/01/20

It is known that 64% of Americans personally worry a great deal about federal spending and the budget deficit.

It is known that 64% of Americans personally worry a great deal about federal spending and the budget deficit. Which of the following needs to be satisfied in order to be able to use the Central... more
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10/01/20

Central Limit Theorem for Proportions
When you take samples from a population and compute a proportion from each one, you can consider the distribution of those proportions. This is called the sampling distribution for the population... more
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10/01/20

Activity 13 essay
Is a circle a polygon? Explain the different opinions of each group of mathematicians.
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10/01/20

Determine if the slopes are perpendicular

Line 1: m=-3Line 2: m=1/3
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10/01/20

Distance between Parallel Lines
Find the distance between the pair of parallel lines; y = 2x + 4 and y = 2x – 2.a. 2.68b. 2.75c. 2.94d. 3.11
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09/30/20

Point Y is in the interior of <XWZ. If m<XWZ = 121 and m<XWY = 59. Find m<YWZ

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09/30/20

An angle measures 5.2° more than the measure of its complementary angle. What is the measure of each angle?
Can someone explain how to do this type of questions while also responding this one? please
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09/30/20

One week a store sold 45 pens.
One kind sold for $8.50 and another for $9.75. If $398.75 was taken in, how many of each kind were sold?
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09/30/20

the sum of two integers is 7.
the sum of two integers is 7. the larger integer is 13 more than twice the smaller integer. find both the smaller integer and the larger integer
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09/30/20

Proofs with Parallel Lines and Transversals
Given: ∠3 and ∠6 are alternate interior anglesProve: ∠3=∠6
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09/30/20

I need help with my statistics homework

If babies' weights are normally distributed with a mean of 3.23 kg and a standard deviation of 0.87 kg, find the range of weights that contain approximately(a) 68% of the data kg --  kg(b) 95% of... more
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09/30/20

Find the distance from the point (6,-2) to the line y=2x-4
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09/30/20

Sample/ Probability question
What does the central limit theorem state?
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09/30/20

Statistics and probability

Dr. Emmett Brown has a bag of M&Ms. He has 7 green M&Ms, 12 brown M&Ms, 3 blue M&Ms, and 5 red M&Ms.What is the probability that Emmett selects a blue M&M followed by a... more
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09/29/20

noreen ran 4 miles farther than heather. together they ran a distance of 20miles. how far did each girl run
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09/29/20

Find m∠C if ∠C and ∠D are supplementary, m∠C= 3y-5, m∠D= 8y + 20
This is from a geometry question but i really dont understand it could someone explain it to me i got 40 somehow.
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09/29/20

Find remaining five trigonometric functions

Given cos(theta)= 1/5 and theta is not in quadrant 2. Find the remaining five trigonometric functions of theta.
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09/29/20

Fill in the blanks
A) Given a 30-60-90 triangle and the side opposite 60(degrees) is 5. The side opposite 30(degrees) is _______ and the hypotenuse is ______. B) Given a 45-45-90 triangle and the side hypotenuse is... more
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