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Reported that diastolic blood pressures of adult women in the United States are approximately normally distributed with mean 80.5 and standard deviation 9.9.
a. Find the probability that a randomly selected adult woman will have a diastolic blood pressure greater than 85?
b. Find the 40th percentile of the blood pressures.
c. A random sample of size 81will be drawn from the population. What is the probability that the sample mean will be greater than 78.5?
a. If the company charges $25 for this extended warranty, what is the expected value of the profit they will earn?
Make a scatter plot of Y and X1 using Word. To do this click on insert and then chart. Click on X Y (Scatter). Enter the data from the table.
If you plan to study 8 hours per week, what would you predict for your GPA?- If you plan to study 10 hours per week, what would you predict for your GPA?
Use the concept of hydrogen bonding to explain which would hurt more: a belly flop dive into a pool of water or oil.
In fruit flies, long-wing(L) is dominant to vestigial (l). Two long-wing flies produce 49 vestigial and 148 long-wing off spring.
At the .01 significance level, is there a difference in the mean amount purchased on an impulse at the two stores? Explain these results to a person who knows about the t test for a single sample but who is unfamiliar with the t test for independe..
according to the pew internet amp american life project 75 of american adults use the internet. the pew project authors
A congressional committee wishes to estimate the average annual subsidy received by tenant farmers in a southern state. A random sample of 495 farms is taken, the sample mean is found to be $7,850 with a sample standard deviation of $750. Compute ..
assume that a set of test scores is normally distributed with a mean of 78 and a standard diviation of 10. what
Suppose that a survey of 400 students at your school is conducted to assess student opinion about a new academic honesty policy.
1. What is meant by the term repeatable error? 2. What is meant by the term lrue king error?
Identify the independent and dependent variables. Indicate the number of levels in the independent variable and describe each level.
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