Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Life on Other Planets Forty-two percent of people believe that there is life on other planets in the universe. A scientist does not agree with
Life on Other Planets Forty-two percent of people believe that there is life on other planets in the universe. A scientist does not agree with this finding. He surveyed 110 randomly selected individuals and found 44 believed that there is life on other planets. At a = 0.05, is there sufficient evidence to conclude that the percentage differs from 42%? Use the critical value method with tables. Do not round intermediate steps. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and identify the claim. Ho : (Choose one) H 1 : (Choose one) 0=0 020 This hypothesis test is a (Choose one) test XMoviegoers The average "moviegoer" sees 8.5 movies a year. A moviegoer is defined as a person who sees at least one movie in a theater in a 12-month period. A random sample of 40 moviegoers from a large university revealed that the average number of movies seen per person was 9.3. The population standard deviation is 3.2 movies. At the 0.01 level of significance, can it be concluded that this represents a difference from the national average? Part: 0 / 5 Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. Ho : Choose one) H 1 : (Choose one) 0=0 040 This hypothesis test is a | (Choose one) test XCigarette Smoking A researcher found that a cigarette smoker smokes on average 33 cigarettes a day. She feels that this average is too high. She selected a random sample of 10 smokers and found that the mean number of cigarettes they smoked per day was 27. The sample standard deviation was 2.5. At a = 0.01, is there enough evidence to support her claim? Assume that the population is approximately normally distributed. Use the critical value method and tables. Part: 0 / 5 Part 1 of 5 (a) State the hypotheses and identify the claim. Ho : (Choose one) H H 1 (Choose one) 0=0 020 This hypothesis test is a (Choose one) test X
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started