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1. A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school is tested and and a mean SAT score of 1030 is obtained. The average score for public high school student is 1000 (σ= 200).
b. What are H0 and Ha for this study?
c. Compute Z obt
d. What is the Z critical value (Z cv ) using a 0.05 alpha level?
e. Should H0 be rejected? What should the researcher conclude?
f. Determine the 95 % confidence interval for the population mean, based on the sample mean.
Hi experts, i wonder if you can help me in my project which is an application for 3D modeling of satellite data geographical using Matlab, i have to add more options and functions to my application that can be useful for those how are in the Civil Engineering domain or even for example include a flight simulator and more. so I'm going to use satellite images 2D and 3D (some of them have the extension DEM). in fact my project idea is similar a little bit to GOOGLE EARTH with the it's options, but I'm going to focus just on a special area.
Hope you can help me and guide me to realize this work.
Special Thank to all the experts.
What is Linear Momentum?
Hi!
I have some problem with some micro problems. Could you help a little bit?
1. A firm has a production function given by f(x1,x2,x3,x4)=min{2x1+x2,x3+2x4}. What is the cost function for this technology? What is the conditional demand function for factors 1 and 2 as a function of factors prices (w1,w2,w3,w4) and output y?
2. Suppose that the firm has two possible activities to produce output. Activity a uses a1 units of good 1 and a2 units of good 2 to produce one unit of output.Activity b uses b1 units of good 1 and b2 units of good 2 to produce 1 unit of output. Factors can only be used in these fixed proportions. If the factor prices are (w1,w2), what are the demands for these two factors? What is the cost function for this technology? For what factor prices is the cost function not differentiable?
3. A firm uses 4 inputs to produce 1 output. The production function is
f(x1,x2,x3,x4)=min{x1,x2}+min{x3,x4}
What is the cost function?
If you could give some hints or examples that'd be great
A sample of ammonia has a mass of 35.8 grams. How many molecules are in this sample?
Write a program that reads a list of students marks in a course from an input file then calculates the students grades and the class average mark and grade. Your program should input the name of the file from the user (via the keyboard).
Each line in the input file contains a student ID followed by marks in homework assignments (out of 10), in lab tests (out of 50) and in the final test (out of 40). Each of these four pieces of information is separated by a tab.
Your program should write the output to an output file called results.dat as follows:
1. For each student write the following on a line: ID followed by the total mark followed by the grade separated by tabs. Assume grades are calculated according to the following table:
95-100: A
90-95: A-
85-89: B+
80-84: B
75-79: B-
70-74: C+
65-69: C
60-64: C-
55-59: D
Below 55: F
2 If the class average is 80% or above your program should display on the screenon the screen the message “high average”, otherwise display “normal average.” Use the ternary
I have designing in my web page .first i want display image and customer record display gridview
how to design how to implement the code
Given that x=2 and y= -3,calculate the value of xy2
2zy/y2=14/y
2 - s when s = -2
