Suppose that resting pulse rates for healthy adults are found to follow a normal distribution, with a mean of 69 beats per minute and a standard deviation of 9.5 beats per minute. what does it mean if bonnie has a pulse rate of 78.5 beats per minute? a. bonnie's pulse rate, when converted to a standard score, would be 1.5.b. bonnie's pulse rate is two standard deviations above the mean. c. approximately 32% of adults have pulse rates higher than bonnie's. d. approximately 16% of adults have pulse rates higher than bonnie's.

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

The value of cos 30° is the same as which of the following?

Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10