Problem 1: A random sample of 81 students at a local university showed that they work an average of 100 hours per month. The population standard deviation is known to be 27 hours. Answer the 4 questions below. 1) What is the point estimate for the mean hours per month all students at the university work 2) 95% confidence interval is 3) 99% confidence interval is 4) Type here which interval is wider. Why?

Q: Only handwritten solution.In which platform is it solved course hero or bartleby

A:

Q: Selve du 4824 8.

A: Given heat equation, ∂u∂t=4∂2u ∂x2u(0,t)=0u(8,t)=0u(x,0)=4x-12x2=f(x,y)  Here length l=8 and c2=4

Q: Subtract the hexadezimal number DAD from CAFE. Multiply these numbers.

A: DAD -CAFE = -BD51

Q: Evaluate: Ssntxax

A: ∫sin4(x)dxAccoring to  reduction formula ∫ sinn(x)=n-1n∫ sinn-2(x)dx-cosxsinn-1(x)nhere n=4∫…

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A:

Q: not rounded to 4 decimals as

A: The mean is 64,271 and the standard deviation is 17,329.

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A:

Q: Subtract the hexadezimal number BAD from FEED. Multiply these numbers.

A: We can first convert hexadecimal numbers to binary and then we can subtract or multiply them.

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A: If bases are equal then automatically powers must be equal in order to satisfy an equation

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A: We have to find the time necessary to travel 447 miles.

Q: 4. X = 100

A:

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A: Given- 10007x-10=50412+100x To Solve- The above expression.

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A:

Q: solve for b a=1\2bh

A: We will find the value of b in terms of a and h as following .

Q: Calculate

A: Given the function

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A: By the derivative method i have solved the problem

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A:

Q: if <EDF = 88 degrees and <CDE =110 degrees, find <FDC.

A:

Q: Please use the formula Speed = distance ÷ time as instructed

A: use the formula Speed = distance ÷ time as instructed .

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Q: Se* 5x dx .4 2

A: on solving this we get the

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A:

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A:

Q: Please help me with #2 and #3, too. I will give rate for both

A: Question No. (2):To find the inverse Laplace transform.Note:  Since, the student has has mentioned…

Q: Find the distance between (-1.509, 1.15) and (-1.891, 0.996). What is the time traveled if 1 unit=…

A: By applying distance formula