a. Summarize the data using the Descriptive Statistics tool. What can you say about the shape of the distribution oftimes?

(Type integers or decimals rounded to two decimal places asneeded.)

Time(sec)

23

328

238

71

206

36

46

62

45

72

144

403

136

18

35

119

139

150

287

120

128

163

104

113

71

156

40

695

50

151

Mean 144.97

Standard Error 25.33

Median 119.50

Mode 71

Standard Deviation 138.72

Sample Variance 19242.10

Kurtosis 7.99

Skewness 2.51

Range 677

Minimum 18

Maximum 695

Sum 4349

Count 30

b. Find the 90th percentile.

The 90th percentile is

(Round to the nearest integer asneeded.)