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An electronics retailer believes that, at most, 40% of their cell phone inventory was sold during November. The retailer surveyed 80 dealers and found that 38% of the inventory was sold. Since 38% is less than 40%, is this difference of 2 percentage points sampling error or a significant difference? Test at the 0.05 level. The hypothesis test would be: Select one: a.HO;us40%;H1;µ> 40% b.HO:u2 40%; H1;µ< 40% C.HO;µ =40%;H1;µ #40% d.None is correct e.HO: u #40%; H1:µ =40%

An electronics retailer believes that, at most, 40% of their cell phone inventory was sold during November. The retailer surveyed 80 dealers and found that 38% of the inventory was sold. Since 38% is less than 40%, is this difference of 2 percentage points sampling error or a significant difference? Test at the 0.05 level. The hypothesis test would be: Select one: a.HO;us40%;H1;µ> 40% b.HO:u2 40%; H1;µ< 40% C.HO;µ =40%;H1;µ #40% d.None is correct e.HO: u #40%; H1:µ =40%

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 5E
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An electronics retailer believes that, at most, 40% of their cell phone inventory was sold during November. The retailer surveyed 80 dealers and found that 38% of the inventory was sold. Since 38% is less than 40%, is this difference of 2 percentage points sampling error or a significant difference? Test at the 0.05 level. The hypothesis test would be: Select one: a.HO:us40%;H1:p> 40% b.HO:p2 40%; H1:p< 40% c.HO;u =40%;H1:u #40% d.None is correct e.HO: u #40%; H1:p =40%
Transcribed Image Text:An electronics retailer believes that, at most, 40% of their cell phone inventory was sold during November. The retailer surveyed 80 dealers and found that 38% of the inventory was sold. Since 38% is less than 40%, is this difference of 2 percentage points sampling error or a significant difference? Test at the 0.05 level. The hypothesis test would be: Select one: a.HO:us40%;H1:p> 40% b.HO:p2 40%; H1:p< 40% c.HO;u =40%;H1:u #40% d.None is correct e.HO: u #40%; H1:p =40%
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