Chapter 11: Q.40 (page 657)
Graph the situation. Label and scale the horizontal axis. Mark the mean and test statistic. Shade in the region corresponding to the p-value.
Short Answer
The graph:
Chapter 11: Q.40 (page 657)
Graph the situation. Label and scale the horizontal axis. Mark the mean and test statistic. Shade in the region corresponding to the p-value.
The graph:
All the tools & learning materials you need for study success - in one app.
Get started for freeRead the statement and decide whether it is true or false.
The test for independence uses tables of observed and expected data values.
The marital status distribution of the U.S. male population, ages and older, is as shown in Table 11.35.
Martial Status | Percent | Frequency |
never married | 31.3 | |
married | 56.1 | |
widowed | 2.5 | |
divorced /separated | 10.1 |
Table contains information from a survey among participants classified according to their age groups. The second column shows the percentage of obese people per age class among the study participants. The last column comes from a different study at the national level that shows the corresponding percentages of obese people in the same age classes in the USA. Perform a hypothesis test at the % significance level to determine whether the survey participants are a representative sample of the USA obese population.
Age Class (Years) | Obese Expected (percentage) | Obese Observed (Frequencies) |
Table
Do families and singles have the same distribution of cars? Use a level of significance of . Suppose that randomly selected families and randomly selected singles were asked what type of car they drove: sport, sedan, hatchback, truck, van/SUV. The results are shown in Table Do families and singles have the same distribution of cars? Test at a level of significance of .
A sample of students is taken. Of the students surveyed,were music students, while were not. Ninetyseven were on the honor roll, while were not. If we assume being a music student and being on the honor roll are independent events, what is the expected number of music students who are also on the honor roll?
What do you think about this solution?
We value your feedback to improve our textbook solutions.