You measure 20 dogs' weights, and find they have a mean weight of 64 ounces. assume the population standard deviation is 11.5 ounces. based on this, construct a 95% confidence interval for the true population mean dog weight.

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.