07/14/20

What is the lower and upper bound?
A simple random sample of size n equals 350 individuals who are currently employed is asked if they work at home at least once per week. Of the 350 employed individuals​ surveyed, 28responded that... more
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07/14/20

Polygons (Finding Apothem)
I am trying to find the apothem for a nonagon with sides each equaling 8.I understand the formula for regular polygon to be : Area= 1/2(apothem)(perimeter)For my problem the perimeter is 72, though... more
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07/14/20

Can you help by working this out for me please
2. A bag contains 24 pieces of candy, of which 12 are peppermints and 12 are butterscotch. Let X be the number of peppermints in a sample of 5 pieces of candy selected at random and without... more
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07/14/20

What is the probability that a student picked at random took Precalculus, given that she passed Calculus?

A college requires certain students to take Precalculus prior to taking Calculus. Thirty-five percent of students that eventually take Calculus take the Precalculus course. Sixty percent of those... more
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07/14/20

With Ha : μ < 121 you obtain a test statistic of z = − 2.385 . Find the p-value accurate to 4 decimal places.
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07/14/20

You are performing a left-tailed test with test statistic z = − 2.84 , find the p-value accurate to 4 decimal places.
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07/14/20

You are performing a right-tailed test with test statistic z = 0.93 , find the p-value to 4 decimal places
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07/14/20

Right the slope intercept forms of the equations of the lines through the given point (a) parallel to the given line and (b) perpendicular to the given line.
1) Point: (2,1) Line: 4x-2y=32) Point: (-2/3,7/8) Line: 3x+4y=73) Point: (3,-2) Line: x-4=0
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07/14/20

Determine whether the lines L1 and L2 passing through the pairs of points are parallel, perpendicular or neither.
1) L1: (0,-1), (5,9) L2: (0,3), (4,1)2) L1: (3,6), (-6,0)L2: (0,-1), (5, 7/3)
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07/14/20

A random sample of 80 observations results in 50 successes.
A. Construct the 95% confidence Interval for the population of successes. Confidence interval: _______ to ________B. Construct the 95% confidence Interval for the population of failures. Confidence... more
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07/14/20

Verify identity-trigonometry

Cos(2A)/1+sin2A = cotA-1/cotA+1verify the identity
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07/14/20

bimodal histogram?
What do we mean when we say that a histogram is skewed to the left? To the right? What is a bimodal histogram? Discuss the following statement: “A bimodal histogram usually results if we draw a... more
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07/13/20

Analogies, Similes, Allegories, and Metaphors

These four literary devices are often mistaken for one another, and it can be easy to confuse any of these terms because they all generally draw comparisons to something. However, it's important to... more
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07/13/20

A collection of 25 coins is made up of nickels and quarters. If there are 3 more nickels than quarters, how much money is the collection of coins worth?
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07/13/20

Algebra 2 Question
What is the factored form of 6x^4 - 21x^3 - 12x^2?
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07/13/20

Finite Math: Probability & Percentages
Wonder Widgets Inc produces  Midget Widgets (MW).. Their data shows that 2% of the output is defective. A sample of 25 MWs is taken.(a) What is the probability that exactly two of this sample are... more
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07/13/20

A dolphin swimming 24 feet below the ocean’s surface dives 18 feet straight down. How many feet below the ocean’s surface is the dolphin now?
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07/13/20

The outside weather was -4F in the morning and 13F in the afternoon. By how much did the temperature increase?
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07/13/20

A population of values has a normal distribution with mean of 51.2 and standard dev. of 12.5. You intend to draw a random sample of size of 112.
Find the probability that a sample of size n=112 is randomly selected with a mean between 51.1 and 51.8.
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07/13/20

A population of values has a norm. distribution with a mean of 51.2 and standard dev. of 12.5. You want to draw a sample of size 112.

Find the prob. that a single randomly selected value is between 51.1 & 51.8.
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07/12/20

2 Sample Hypothesis
You wish to test the following claim (Ha) at a significance level of α=0.05.      Ho:p1=p2      Ha:p1<p2You obtain 92.6% successes in a sample of size n1=759 from the first population. You... more
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07/12/20

Sample Hypothesis
You wish to test the following claim (Ha) at a significance level of α=0.02.      Ho:p1=p2      Ha:p1>p2You obtain 10% successes in a sample of size n1=240 from the first population. You obtain... more
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07/12/20

Sample Hypothesis
You wish to test the following claim (Ha) at a significance level of α=0.01.      Ho:p1=p2      Ha:p1>p2You obtain 71 successes in a sample of size n1=715 from the first population. You obtain... more
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07/12/20

Statistics Propration
You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats.You sample 100 men, and 80% own cats.You sample 180 women, and 45% own... more
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07/12/20

Sample Hypothesis Test - Proportion
You wish to test the following claim (Ha) at a significance level of α=0.01.      Ho:p1=p2      Ha:p1>p2You obtain 339 successes in a sample of size n1=796 from the first population. You obtain... more
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