A sample of 49 observations is taken from a normal population. the sample mean is 55, and the sample standard deviation is 10. determine the 99 percent confidence interval for the population mean.

Find the sum. (-3x^4 - 9x^3 - 4x^2 + 4) + (8x^3 - 7x^3 - x - 6) O A.) - 3x^4 + x^3 - 4x^2 - x - 2 O B.) 3x^4 + x^3 - 4x^2 - x - 2 O C.) - 3x^4 - 8x^3 - 4x^2 - x - 2 O D.) 3x4^4 - x^3 - 4x^2 - x - 2

What is the slope of the line described by the equation y = 6x + 3? The Slope of m =.

What is a ratio of the a circle to its diamerer

If there are 62 values in a data set, how many classes should be created for a frequency histogram?

If x² - y² = 55, and x - y = 11, then y = a. 8 b. 5 c. 3 d. - 8 e. - 3

The Chinese system presented in the text has symbols for 1 through 9, and also for 10, 100, and 1000. What is the greatest number expressible in that system?

Convert each measure to degrees. Round answers to the nearest hundredth if needed. a.) π/9 b.) - 2π/3

Include sales tax 6% an inn charges $265 per night. find the cost before taxes

A law firm has five senior and six junior partners. A committee of three partners is selected at random to represent the firm at a conference. What is the probability that at least one of the junior partners is on the? committee?

Find the circumference of each circle with the given radius or diameter. Round to the nearest tenth. Use 3.14 for T. d = 14.2 mm