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data set: https://www.dropbox.com/s/twynirndi5duvi4/data.xlsx?dl=0 data link: ht

ID: 3170140 • Letter: D

Question

data set:

https://www.dropbox.com/s/twynirndi5duvi4/data.xlsx?dl=0

data link:  https://www.dropbox.com/s/twynirndi5duvi4/data.xlsx?dl=0

Based on a 95% confidence interval, check ALL of the following that are valid statements (there may be more than one. but there is at least one that is valid). All of the statements are comparing condos with a view with to those without a view. 120 Days to Sell is a plausible value for ONLY condos without a view. 80 Days to Sell is NOT a plausible value for either kind of condo (those with a view and those without) 140 Days to Sell is a plausible value for condos without a view 140 Days to Sell is NOT a plausible value for either kmd of condo 120 Days to Sell is a plausible value for ONLY condos with a view. 120 Days to Sell is a plausible value for BOTH condos with and without a view. 140 Days to Sell is a plausible value for condos with a view 80 Days to Sell is a plausible value for either kmd of condo (those with a view and those without) 80 Days to Sell is a plausible value for ONE kmd of condo but not the other.

Explanation / Answer

River_Days to Sell

130

71

85

95

119

92

197

56

73

126

88

282

100

56

49

48

88

161

149

142

28

29

140

85

107

72

129

160

206

91

110

90

Mean

107.9375

SD

54.03997177

95% confidence interval=107.9375+-2.0227*54.04=-1.36921 to 217.2442

NoRiver_Days to Sell

182

338

122

150

169

58

110

130

149

114

120

61

146

137

281

63

48

52

33

88

232

127

78

105

120

164

126

35

241

217

37

224

178

212

129

218

168

50

150

115

Mean

136.925

SD

70.77026302

95% confidence interval=136.925+-2.0227*70.77=-6.22148 to 280.0715

I am assuming River= Condos with a view and Noriver= Condos without a view and hence below four are correct options

140 Days to Sell is plausible value for condos without a view.

120 Days to Sell is a plausible value for BOTH condos with and without a view.  

140 Days to Sell is plausible value for condos with a view.

80 Days to Sell is a plausible value for either kind of a condo. (those with a view and without)

River_Days to Sell

130

71

85

95

119

92

197

56

73

126

88

282

100

56

49

48

88

161

149

142

28

29

140

85

107

72

129

160

206

91

110

90