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A factory manufacturing light-emitting diode (LED) bulbs claims that their light bulb lastfor 50 000 hours on the average. To confirm its this claim is valid, a quality control manager got a sample of 50 LED bulbs and obtained a life span of 40 000 hours. The standard deviation of the manufacturing process is 1 000 hours. Do you think the claim of the manufacturer is valid at the 5% level of significance?
Describe the physical significance of the centrifugal term in the radial part of Schrodinger's equation of H atom
Write a program that first reads an integer for the array size,
then reads characters into the array, and displays the consonants (i.e., a character
is displayed only if it a consonant). (Hint: Read a character and store it to an array
if it is not a vowel. If the character is a vowel, discard it. After the input, the array
contains only the consonants.)
Write a program that first reads an integer for the array size, then
reads numbers into the array, counts the even numbers and the odd numbers and
displays them.
name three verbs used in doing mathematics with examples
air is being pumped into a spherical balloon at a rate of 5cm^3/min. Determine the rate at which the radius of the balloon is increasing when the radius of the balloon is 20 cm
- Maria can read 20 pages of economics in an hour. She can also read 50 pages of sociology in an hour. She spends 5 hours per day studying.
- Draw Maria’s production possibilities frontier
- for reading economics and sociology.
- What is Maria’s opportunity cost of reading
- 100 pages of sociology?
Write algorithm using pseudocode and flowchart that uses while loops to perform the
following steps:
i. Prompt the user to input two integers: firstNum and secondNum note that firstNum
must be less than secondNum.
ii. Output all odd numbers between firstNum and secondNum.
iii. Output the sum of all even numbers between firstNum and secondNum.
iv. Output the numbers and their squares between firstNum and secondNum.
v. Output the sum of the square of the odd numbers between firstNum and secondNum.
b. Redo Exercise (a) using for loops.
c. Redo Exercise (a) using do. . .while loo
Suppose the price elasticity of demand for heating oil is 0.2 in the short run and 0.7 in the long run.
a. Ifthepriceofheatingoilrisesfrom$1.80to$2.20
per gallon, what happens to the quantity of heating oil demanded in the short run? In the long run? (Use the midpoint method in your calculations.)
the number of defective production in a production process follows a poisson distribution with a mean of 2.6 per month, for a given month what is the probability there will be fewer than two defective production?
