Fall 2004 Test 2 Math 1P98

Fall 2004 Test 2 Math 1P98 - Test 2a Math 1P98 November 19...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Test 2a Math 1P98 November 19 2004 Name . ................................................ Student Number . .......................................... BOX . .......................................... You are allowed to bring one regular sized sheet of paper and a non graphing calculator . Any electronic devices with more than two lines of display will be confiscated. Answers should be correct to a minimum of 3 significant digits, to this end be sure to have more digits than this throughout the question. For each multiple choice question, circle the best answer ................................................................................................................................. [3] 1 . The time taken to do an assignment was found, based on a sample of 32 students, to have a mean of 3.4 hours with a standard deviation of 15 minutes. How many more students will have to be surveyed, to be 90% sure of being within 3 minutes of the population mean time. [8] 2. Assume the systolic blood pressure in the general population is normally distributed. It may have different population means for males and females but has the same standard deviation. Construct a 95% confidence interval for the difference between the population mean male and female systolic blood pressure, using the following two random independent samples. Males: 136, 152, 140, 118 Females:109, 129, 116
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
[5] 3 . The growth rate of a plant, in cm/week, was measured before and after a day of heavy rainfall, for a sample of 8 plants. The differences between the two growth rates form a normal distribution. The following is a Minitab output of the results.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

Fall 2004 Test 2 Math 1P98 - Test 2a Math 1P98 November 19...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online