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The average number of tadpoles per gallon of water in Rocky Mountain National Park is believed to be 13, and is normally distributed. You collect 10 one gallon samples and find the following numbers of tadpoles:
10, 13, 10, 11, 10, 20, 15, 21, 14, 16
From these, you calculate the mean to be 14 and the standard deviation to be 4.06. Test the hypothesis that, at the 6% level of significance, the mean number of tadpoles per gallon in Rocky Mountain National Park is different from 13.
Normal distribution with a mean of 131 pounds and a standard deviation of 5.9574 pounds. What percent of the students would you expect to weigh at least 145 pounds?
Find the sample space for the number of outcomes (you don't need to list the possible outcomes, just how many possible outcomes there are).
BMI in children is roughtl normally distributed with the mean of 24.5 and standard deviation of 6.2. BMI of 30 or more is considered obese. Determine proportion of children are obese?
suppose 13 of american adults believe that the highest priority of america is to protect freedom of speech. we will
you are head of risk management for the norne corporation. due to the size of your company you feel comfortable
Find the margin of error for the values of c,s,and n and construct the confidence interval to find the estimated margin of error. Then find the sample mean.
find the sample size needed to estimate the percentage of adults who have consulted fortune tellers. use a 0.03 margin
A random sample of 20 patients in a weight loss clinical trial lost an average of 25 pounds over an 8 week period. The sample standard deviation is 10.
If desired confidence level is 95 percent, suitable critical value is?
At least half the patients are under 15 years old? First, describe how this can be modelled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20 percent.
steve and his friends are relaxing at a local tavern. the number of drinks that steves table receives is poisson
At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value.
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