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Week 3 Case Study - A BETTER Secret Sauce Of Stats Success
Week 3 Case Study: A Better Secret Sauce of Stats Success
Name of the Writer
Name of the University
Week 3 Case Study: A Better Secret Sauce of Stats Success
Question 1
a) 0.50
Calculation
=151/300 = 0.50
b) 0.93
Calculation
=48++63+40+36+32+23+9+16+11/300 = 0.93
c) 0.67
Calculation
= 101/151 = 0.67
d) 0.17
Calculation
= 51/300 = 0.17
e) 0.01
Calculation
= 2/300 = 0.01
f)
Rating
Male
Female
21 - 24
25 - 34
35 - 49
4
0.17
0.13
0.12
0.11
0.08
5
0.23
0.28
0.16
0.21
0.13
Based on the calculations, the best target audience would be the females with ratings 5, which is 0.28
Calculation
Question 2
a) Mean = 4.39 and Standard Deviation = 37.70
Calculation
b) 0.15
Calculation
= 13/85 = 0.15
c) 0.54
Calculation
= 14+12+10+5+5/85 = 0.54
d) 0.14
Calculation
= 12/85 = 0.14
e) 0.21
Calculation
= 12/7+6+6+13+14+12 = 0.21
Question 3
a)
Drinking Temperature
Sample
Temperature
1 to 5
242
6 to 10
221
11 to 15
237
16 to 20
245
21 to 25
242
26 to 30
258
Total
1445
b)
Question 4
a)
Drinking Temperature
Sample
Temperature
Z score
1 to 5
242
26.10
6 to 10
221
23.68
11 to 15
237
25.53
16 to 20
245
26.45
21 to 25
242
26.10
26 to 30
258
27.95
Total
1445
Standard deviation
8.66
Mean
15.93
Calculation
b) 0.2
Calculation
= 42+39+44+39+43/1445 = 0.2
c) The probability is zero because in no sample of wine was the temp 60 or above 60 in the data given.
d) 42.08%
Calculation
= 52+50+52+50+49+52+52+50+49+49+49+54/1445 = 42.08%
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