Using the above data find a. The average (mean) sales per week exceeds 41.5 per

Question

  

Using the above data find

    a.   The average (mean) sales per week exceeds 41.5 per salesperson.

SALES CALLS TIME YEARS TYPE 46 171 12.7 5 ONLINE 34 134 17.0 4 NONE 44 165 15.7 3 ONLINE 45 186 13.0 3 ONLINE 42 180 14.8 2 ONLINE 47 184 12.4 2 ONLINE 33 126 20.2 3 NONE 44 172 14.4 3 GROUP 42 161 13.9 1 GROUP 37 149 15.4 3 NONE 46 181 12.2 4 ONLINE 40 145 16.0 0 NONE 43 140 17.0 2 GROUP 52 198 13.5 2 ONLINE 41 149 17.3 0 ONLINE 42 168 12.9 3 ONLINE 32 124 17.5 2 NONE 42 149 16.5 1 GROUP 38 135 18.2 1 GROUP 49 185 18.6 2 ONLINE 39 154 18.3 1 NONE 43 149 15.6 1 ONLINE 50 193 13.2 1 ONLINE 37 153 18.7 0 NONE 39 152 15.0 3 GROUP 43 170 14.7 4 GROUP 44 192 14.6 1 GROUP 45 165 16.4 3 ONLINE 40 150 15.3 3 GROUP 43 174 15.6 2 ONLINE 42 168 15.0 0 ONLINE 48 178 15.1 3 ONLINE 44 164 16.5 3 GROUP 51 191 11.8 2 ONLINE 37 139 14.4 0 NONE 37 138 17.7 1 NONE 46 171 15.9 5 ONLINE 44 170 11.2 0 ONLINE 41 153 18.0 3 GROUP 42 154 15.1 2 GROUP 40 144 14.0 3 NONE 37 134 16.9 2 NONE 47 177 17.2 0 ONLINE 39 157 14.5 4 NONE 40 134 20.2 3 GROUP 37 131 18.3 1 GROUP 35 129 18.4 4 NONE 44 183 15.1 4 ONLINE 43 169 14.0 5 GROUP 42 155 16.0 2 ONLINE 48 182 12.8 2 ONLINE 37 143 12.0 1 NONE 41 157 13.5 1 ONLINE 43 167 14.8 3 ONLINE 40 142 15.8 2 NONE 42 168 12.1 2 GROUP 43 175 14.8 2 GROUP 39 150 18.0 2 GROUP 41 155 17.9 1 GROUP 46 163 16.6 2 ONLINE 40 162 13.6 4 GROUP 44 189 14.1 3 ONLINE 44 153 20.9 2 ONLINE 41 158 13.4 3 ONLINE 43 160 11.2 4 ONLINE 46 173 12.1 1 ONLINE 43 178 18.3 2 GROUP 47 189 13.1 1 ONLINE 49 184 11.4 4 ONLINE 45 174 14.0 2 ONLINE 48 188 14.6 0 ONLINE 37 149 15.8 1 GROUP 40 159 14.6 2 GROUP 44 160 14.8 2 ONLINE 41 166 17.4 1 GROUP 52 178 14.9 1 ONLINE 49 178 12.0 2 ONLINE 48 176 13.3 1 ONLINE 39 143 15.5 2 NONE 41 159 18.8 2 ONLINE 38 149 14.7 2 NONE 40 151 16.6 2 GROUP 48 186 13.1 1 ONLINE 47 194 13.1 2 ONLINE 38 152 14.2 4 GROUP 38 146 19.7 2 NONE 45 188 10.0 2 ONLINE 39 139 19.3 3 GROUP 49 201 12.5 1 ONLINE 41 156 11.8 3 GROUP 36 132 19.5 2 NONE 42 161 16.3 3 ONLINE 41 152 14.6 1 ONLINE 45 178 16.4 2 ONLINE 38 157 16.4 3 GROUP 41 154 14.3 1 GROUP 44 156 21.6 0 ONLINE 44 170 12.5 1 ONLINE 44 170 15.8 0 ONLINE 37 146 17.7 3 NONE

Explanation / Answer

a) The average (mean) sales per week exceeds 41.5 per salesperson.

= 61/100 = 0.61

b)

c)

d)   The average (mean) time per call is greater than 15 minutes.=50/100 = 0.50

The prob is calculated calculating actual favourable outcomes from the given data.

The true population proportion of salespeople that received online training is less than             55%.= 50/100 = 0.50

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