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Chapter 11: Q 57 (page 658)
Both sorts of tests are concerned with data that has been cross-classified.
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Graph the situation. Label and scale the horizontal axis. Mark the mean and test statistic. Shade the value.
Is there a difference between the distribution of community college statistics students and the distribution of university statistics students in what technology they use on their homework? Of some randomly selected community college students, 43 used a computer, 102 used a calculator with built in statistics functions, and 65 used a table from the textbook. Of some randomly selected university students, 28 used a computer, 33 used a calculator with built in statistics functions, and 40 used a table from the textbook. Conduct an appropriate hypothesis test using a 0.05 level of significance.
Read the statement and decide whether it is true or false.
Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place are shown in Table. Conduct a test for homogeneity at a level of significance.
Refer back to the information in Try It. How many service providing jobs are there expected to be in ? How many nonagriculture wage and salary jobs are there expected to be in ?
A teacher predict that the distribution of grades on the final exam will be and they are recorded in table 11.27
The actual distribution for a class of 20 is in table 11.28
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