Question

➢ Show the answers in the Frequency Distribution Table to 4 decimals.

As the owner of this pizza parlour, you want to develop advertise-ments for television. You select a random sample of 16 young customers and obtain the following data on their ages: Ages in years from a random sample of 16 young customers at Charles Y. Cheese Pizza Emporium 4 5 7 8 9 10 11 11 11 11 11 12 13 13 14 18 o Complete the Quartile Array and Frequency Distribution Table for this data set. Use an ordinary calculator.

Graph the histogram for this data set. o Compute the measures of central tendency and variability for this data set. ➢ Carry all calculations and the answers to 4 decimals. o Which one of the 3 measures of central tendency would you use to interpret this data set? Explain your choice. Do not email your answers to the instructor. INTERPRETATION What is the shape of the frequency polygon? Explain. Which measure of central tendency should be used to report this data set? Explain your choice: How can the owner of this pizza parlour use this information? Q U A R T I L E A R R A Y I. II. III. IV. F R E Q U E N C Y D I S T R I B U T I O N T A B L E CUMULA- CUMULATIVE MID- k= ___ CW= ___ FRE- RELATIVE TIVE FRE- RELATIVE POINTS CLASS RANGE QUENCY FREQUENCY QUENCY FREQUENCY ------------- ------------------------- ------------ ----------------------- ------------ ---------------------- 1 DECIMAL PLACE 4 DECIMAL PLACES 4 DECIMAL PLACES ________ ________ _______________ _______ ______________ _______ _____________ ________ _______________ _______ ______________ _______ _____________ ________ _______________ _______ ______________ _______ _____________ ________ _______________ _______ ______________ _______ _____________ ________ _______________ _______ ______________ _______ _____________ ________ _______________ _______ ______________ _______ _____________ ________ TOTALS: _______ ______________ S U M M A R Y S T A T I S T I C S Use 4 decimal places for stat calcs. Total: _________ Arithmetic Average: _____________ mean: _______________ midpoint of the modal class: _______________ median: ____________________ sample standard deviation: ______________ coefficient of variation: ____________

Answer 1

Denah Darlet X Mean: (7): s1 - 168 2.5 10:5 64 100 12/ 121 Varr (x): Exit-() 1942 - (10.5)² · 121375 -110.25 16 121 121 121 TT125 144 s b (x) 169 [verex) J11-125 169 196 18 324 S.DE) 3 3.3354 Total 168 1942 n:16 Even Median: 2 (8) ons & (gth obs 22 Median -11/ 2161

5.0 Coefficient of Variation : (.V(x): C. V(x) = 3.3354 X) O2 10.5 0.317 68100 - 37 7657 Sne CVOX) — 32 -1.10 op frequency Tallymark PACT Classic 11-5 6-10 11-15 16-20 I Totall a stol 141 III 9 16 HUS 2 Midpoint of Modal class: - 13 Frequency 5.5 15.5 20.5 10.5 1