The box plots represent a comparison of the annual salaries of a group of public and private employees $20,000 Public $40,000 $60,000 $80,000 Private H $100,000 Cathy, a private employee, has an annual salary that is twice the minimum salary of the group of private employees. Dale is the highest paid among the group of public employees. Which of the following statements is true? Select one: O a. The information provided is not sufficient to determine which of the two salaries is higher. O b. none of these O c. Cathy and Dale have the same annual salary. O d. Cathy's annual salary is higher than Dale's. e. Dale's annual salary is higher than Cathy's.

Jeremy boards a Ferris wheel at the 3- o'clock position and rides the Ferris wheel for multiple revolutions. The Ferris wheel rotates at a constant angular speed of 7.3 radians per minute and has a radius of 50 feet. Let t represent the number of seconds since the Ferris wheel started rotating. a. Write an expression (in terms of t) to represent the varying number of radians Jeremy has swept out since the Ferris wheel started rotating. Preview b. Write a function f that determines Jeremy's distance above the center of the Ferris wheel (in feet) in terms of t. f(t) = Preview c. How long does it take for Jeremy to complete one full revolution on the Ferris wheel? Preview minutes

The salaries of the employees at four companies are summarized below. Answer the questions about them. Company A: The mean salary is  $22,000  and the range of salaries is  $47,000 .Company B: The mean salary is  $14,000  and the range of salaries is  $48,000 .Company C: The mean salary is  $16,000  and the range of salaries is  $46,000 .Company D: The mean salary is  $19,000  and the range of salaries is  $55,000 . (a) Based on the information above, which company's salaries have the most variability?   Company A     Company B     Company C     Company D   (b) Based on the information above, which company has the highest salaries on average?   Company A     Company B     Company C     Company D

The prices of the 21 top-rated 28-inch direct view television sets are as follows. $330 $430 340 460 370 480 Determine Q₂, Q₁, and Q3. $220 270 320 Q₂ = $ $380 390 410 $500 520 540 $540 570 590 $640 680 730

Explain.

Would you like a cup of tea? Carole and Julius are getting ready to open a new cafe and are gathering up information about sales of different drinks in their state. They obtain data containing the yearly sales (in $1000s) for three types of tea: Darjeeling, Earl Grey, and Green Tea. A boxplot of the data and a histogram of the sales for all three teas combined is shown below. Note: Clicking on any image in this problem will open it in a new window, allowing you to enlarge the view. Tea Sales by Product Combined Tea Sales Darjeeling Earl Grey Green Tea 100 200 300 400 Product Sales in $1000 Part 1: Use the plots above to make quantitative comparisons and answer the following questions: Quantity A: The 75th percentile (Q3) of Sales for Darjeeling Tea Quantity B: The 75th percentile (Q3) of Sales for Green Tea Quantity A is greater 008 007 Frequency 00z 001 Sales in $1000

The values listed below are waiting times​ (in minutes) of customers at two different banks. At Bank​ A, customers enter a single waiting line that feeds three teller windows. At Bank​ B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions.   Bank A 6.5 6.6 6.7 6.8 7.1 7.2 7.4 7.8 7.8 7.8   Bank B 4.1 5.3 5.9 6.2 6.7 7.6 7.6 8.6 9.2 10.0                                                                                                                                                                                         A.  Construct  a 90​%confidence interval for the population standard deviation σ at Bank A                                                                                                                                                                     _____min  <o Bank A < ______min…

The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A 6.4 6.6 6.7 6.8 7.1 7.3 7.5 7.7 7.7 7.7 Bank B 4.2 5.5 5.7 6.2 6.7 7.8 7.8 8.5 9.3 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 95% confidence interval for the population standard deviation o at Bank A. min< OBank A min (Round two decimal places as needed.) Construct a 95% confidence interval for the population standard deviation o at Bank B. min < OBank B < min (Round to two decimal places as needed.) Interpret the results found in the previous parts. Do the confidence intervals suggest a difference in the variation among waiting times? Does the single-line system or the multiple-line system seem to be a better arrangement? O A. The…

The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A 6.4 6.6 6.7 6.8 7.1 7.3 7.6 7.9 7.9 7.9 Bank B 4.2 5.4 5.8 6.2 6.7 7.6 7.6 8.5 9.2 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 99% confidence interval for the population standard deviation o at Bank A. min < OBank A min (Round to two decimal places as needed.)

1. Fill in the blanks for each of the statements below. а. A survey of 1000 U.S. adults found that 40% think the internet is the best way to get news and information. Population: Sample: Variable of Interest: Type of Data (Qualitative or Quantitative): Is the 40% a parameter or statistic, and why? b. A survey of the 55 law firms in a local city found that the average hourly billing rate is $425. Population: Sample: Variable of Interest: Type of Data (Qualitative or Quantitative): Is the $425 a parameter or statistic, and why?.