Parker has 12 blue marbles. Richard has 34 of the number of blue marbles that Parker has. Part A
Use the drop-down menus to explain how you know that Parker has more blue marbles than Richard.
Multiplying a whole number by a fraction
Choose... equal to, greater then, less then
1 results in a product that is
Choose... equal to, greater then, less then
the original whole number.

Part B
How many blue marbles does Richard have? Enter your answer in the box.
blue marbles

The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.