¡¡Balls, balls, Balls!!

Collection of Data

Titleist Taylor Made Bridgestone Nike

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Choice of Product Golf ball Brands

Quantitative Data

• The Mean is represented by:• The total value of units sold by the total

number of golf balls

• The Mode is represented by:• The units sold value that occurred the most

• The Median is represented by:• The units sold in order and the two numbers in the

middle divided by two

Mean, Mode and Median Formulas

Mean, Mode and Median

Golf Balls Sold in Ordinal Form

Nominal Unit Sales

Unit Sales

Range of values

Standard Deviation

For Number:

66b + ½(e)

h

2 + ½ (2) .176= 18%

17

Percentile Rank

Percentile Rank

Product Units SalesPROV1 2723 $39,660.25PROV1X 1727 $25,503.98NXT 834 $8,308.00NXT TOUR 536 $5,298.80DT SOLO 195 $1,537.6020Xi 166 $2,206.40CRUSH 571 $3,906.80ONE TOUR 59 $812.00VAPOR SPEED 649 $5,008.00NOODLES 362 $2,191.50Burner & Wm's Burner 264 $1,669.84TP BURNER 441 $2,503.40PENTA 922 $10,894.80E6 66 $585.00B330 54 $756.00B330RX 66 $924.00

2.72 0.9967 99.67%1.44 0.9236 92.36%0.30 0.6179 61.79%-0.08 0.4681 46.81%-0.52 0.3015 30.15%-0.56 0.2877 28.77%-0.04 0.484 48.40%-0.70 0.242 24.20%0.06 0.5239 52.39%-0.31 0.3783 37.83%-0.43 0.3336 33.36%-0.21 0.4168 41.68%0.41 0.6591 65.91%-0.69 0.2451 24.51%-0.70 0.242 24.20%-0.69 0.2461 24.61%

From back of book

Standard Deviation With the Empirical Rule

• 16-602 778.9647 = -0.752

599.744 600.496 601.248 602 602.752 603.504 604.256

Experiment : constructing a Dot Plot

Directions:

1) One person from each group will be chosen to putt into the putting cup

a) We will give each person a golf ball and then the person chosen from the group will putt the ball into the putting cup

We will use your information to demonstrate how to create a dot plot on the board.

r = 0.95942025r2 = 97.95%

Sales Correlation

ẋ= sample mean N= Sample Size σ= Population Standard Deviation

z/2=z-value with an area

Confidence Intervals

602.1875 16 714.2021393 = 380.5714563

Conclusion

Statistics reflected

Ϭ 16 was the number of probabilities sold

Ϭ The Titleist is the highest selling brand

Ϭ The Nike has the highest profit margin

QUESTIONS ?