A random sample of 11 items is drawn from a population whose standard deviation is unknown. The sample mean is x = 810 and the sample standard deviation is s= 20. Use Appendix D to find the values of Student's t. (a) Construct an interval estimate of u with 98% confidence. (Round your answers to 3 decimal places.) The 98% confidence interval is from to (b) Construct an interval estimate of u with 98% confidence, assuming that s= 40. (Round your answers to 3 decimal places.) The 98% confidence interval is from to (c) Construct an interval estimate of u with 98% confidence, assuming that s= 80. (Round your answers to 3 decimal places.) The 98% confidence interval is from to (d) Describe how the confidence interval changes as s increases. O The interval stays the same as s increases. O The interval gets wider as s increases. O The interval gets narrower as s increases.

Q: What steps must be followed to solve this?

A: Given the position function, st=t2-1t2+12

Q: One day, as I was out for a drive, I passed through a 1 mile long, straight tunnel. Although I was…

A: Given data: The speed limit is 60 miles per hour=1 mile per minute. The length of the tunnel=1 mile…

Q: Derive the Monge’s subsidiary equations.

A:

Q: 2) Find the formula for a quadratic function that passes through the points (4, 3) and (2, o a as…

A: To Find :- The formula for a quadratic function that passes through the points (4, 3) and (2, 8) and…

Q: How long will it take a jogger jogging at 5 mph to catch up with a walker walking at 3 mph with one…

A: Speed of jogger 5mph Speed of walker 3mph

Q: What are the coordinates used to evaluate the following problem and how are they found?

A: Given that D is a region that lies below the sphere and above a cone.

Q: I am having trouble understanding your answer. How many miles should the boat land from the…

A: I am going to solve the given problem by using some simple calculus to get the required result.

Q: 1. U.S. oil reserves are estimated at 29 billion barrels, and we currently produce about 6 MBPD. How…

A: Given  Oil reserves =29 billion barrels 1 billion = 1000million  Current production= 6 million…

Q: What would be the excel equation for this problem?

A: The mean is 110 and the standard deviation is 25 grams.

Q: Can I reach Pittsburgh, which is 612 miles away, if I drive for 7 and a half hours at a constant…

A: # as per the guidelines we are not entitled to give handwritten solutions Time of drive is 712hours…

Q: Explain the three basic concepts used to derive the Kriging equation.

A: The kriging technique is employed basically to fits the surface to three-D analysis. kriging…

Q: For question b, can you show the steps to how it was calculated? I'm not understanding how it was…

A:

Q: This problem illustrates a typical approach for creating a model. Use lower case letters. We want to…

A:

Q: 3 dy find dx If y = 6x+ 5. x=1

A: We use the derivative formula     ddxxn=nxn-1

Q: I have purchased 600 linear feet of fence to enclose my backyard. Using the back edge of my house as…

A: To find the area

Q: e in Step 2. Kindly assis

A: Year Advert (X) Sales (Y) 2001 10 44 2002 9 40 2003 11 42 2004 12…

Q: I'm confused on this problem, where am I getting lost?

A:

Q: What is the bottom equation for this, please ?

A: Apologies for the inconvenience.   We graph the given equations using graphing calculator.

Q: Please provide the solution to part (ii) for this question.

A: An expression for the angle FBC in terms of h is determined as shown below.

Q: working

A:

Q: Can you explain part (ii) more? just like a basic step by step explanation of everything that…

A: As per the question we are given two functions  α(x) , β(x) And we have to find the derivative of…

Q: Solve the following graphically. x + 3 = √12x+1 Ox=2 x = -2 or x = -4 Ox=-4 x = 4 or x = 2

A:

Q: Write down everything you know about the equation y=mx+b. You should include what this general…

A: Given equation y=mx+b. The objective is to write down everything about the equation.

Q: Given az Find

A:

Q: Can the steps please be broken down into further detail? It is hard to follow the steps

A:

Q: The person above didn't answer question d. Could you complete this?

A:

Q: I see work and answers for all of the questions except number 3, "To help with the landing, the…

A: Given: The balloon has descended to 50 feet above the ground. To find: The instant when the safety…

Q: dx = 4. 十1日 2)

A: Definite integral: - The area of a curve in a graph can be calculated using the Definite Integral.…

Q: What is its equation?

A:

Q: The code is not rendering properly, which makes the solution hard to read.

A: As per the question we have to prove the convolution property of the Laplace transform and hence…

Q: No clear indication as to what the answers are for this problem.

A: Here you are asked to find mean and standard error of the sampling distribution using central limit…

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.