Describe the nature of hypothesis testing and the difference between null and alternative hypothesis. Cite examples of at least two types of hypothesis tests. What is the value of hypothesis testing?

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?