= Heading 1 Heading 2 Title Paragraph Styles 1. A manufacturer of dishwashers provides one model with three exteriors: white, black, and stainless steel. Of the first 1000 dishwashers sold, the manufacturer noticed that 400 of the dishwashers sold had stainless steel exteriors. Should the manufacturer conclude that more than 33% of all customers prefer stainless steel? 2. A marketer claims that at least 35% of the public prefers the Pet Attire company dog collars. She takes a sample of 100 persons to support her claim. 28 do prefer dog collars from Pet Attire. Does the sample refute her claim? 3. A school administrator wants to know if a new program will change the proportion of students who participate in after school extracurricular activities. Currently, 48% of students participate in the activities. After the introduction of the new program, he sampled 127 students and found that 86 participated in the activities. Should the administrator conclude that there has been a change in the proportion of students participating in after school activities? 4. Is red a dangerous color? A researcher in human behavior wanted to test the hypothesis that 80% of humans sense danger when they see a flag that is predominantly red. They sample the reactions of 88 people and find that 68 people reported sensing danger when they saw the red flag. Does this sample support the statement that 80% of humans sense danger when they see red? 5. Do men 55 years or older who become widowers die within six months at a higher rate than the general population of men of the same age? A sample of 4486 widowers found that 4.75% of them died compared to the general mortality rate of 3.41% for all men in that age group. Is the rate for the new widowers significantly higher than the general mortality rate? 6. Part of the sales pitch used by a local television station is that its news broadcasts reach 50%% of the community. A random sample of 64 people from the target community is taken. 38 indicate that they watch the news broadcasts of this station. Does this sample support the statement that the station's news broadcasts reach 50% of the target community