3 Given \( A=\{ \) multiples of 3 from 15 to 60\( \} \). \( B=\{ \) multiples of 5 from 15 to 60\( \} \), and \( C=\{ \) numbers from 15 to 60 that is divisible exactly by 3 and 5\( \} \). Find the values of \( n(A), n(B) \) and \( n(C) \).

4. Out of the 23 people at the networking meeting, 12 work in industry, 6 people teach, 3 work for the Tourist Bureau, and 2 work for the city. What percent does each group represent? Match the percent to the group.

DETAILS MY NOTES AUFEXC4 13.3.013. Kevin scored at the 70th percentile on a test given to 9960 students. How many students scored lower than Kevin? \( \square \) students

What's the key? A method of analyzing digital music files to determine the key in which the music was written was tested to determine its accuracy. In a sample of 361 pop music selections, the key was correctly identified in 277 of them. In a sample of 374 new age selections, the key was correctly identified in 299 of them. Can you conclude that the method is more accurate for new age music than for pop music? Let \( p_{1} \) denote the proportion of correctly identified keys in new age music. Use the \( \alpha=0.05 \) level of significance. Part 1 of 4 (a) State the appropriate null and alternate hypotheses. \( H_{0}: p_{1}= \) \( H_{1}: p_{1} \) This is a right-tailed Part: \( 1 / 4 \) Part 2 of 4 (b) Find the \( P \)-value. Round the answer to four decimal places. \( P \)-value \( = \)

Multiple Choice 2 points A study finds no significant difference in math scores between children in two teaching methods, even though a true difference exists in the population. This is an example of: Sampling error Type ll error Type l error Measurement error

Zia is laid off, and sends out 18 job applications. Statistically, one in six applications results in an interview. How many interviews can Zia expect? Shade the number of applications that result in interviews.