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A certain statistics instructor participates in triathlons. The accompanying table lists times (in minutes and seconds) he recorded while riding a bicycle for five laps through each mile of a 3-mile loop. Use a0.050.05significance level to test the claim that it takes the same time to ride each of the miles. Does one of the miles appear to have a hill?
(Note: when pasting the data into your technology, each mile row will have separate columns for each minute and second entry. You will need to convert each minute/second entry into seconds only.)Determine the null and alternative hypotheses.
Children were a random sample from the population of children represented by past records, what is the probability of observing a value of x equal to 60 or more?
What is the margin of error for a 95% confidence interval on the true proportion of men who still live with their parents? (Keep all computations accurate to four decimal places.)
given the following information alternative hypothesis p lt 0.70 n 300 x 205 alpha 0.02. state your decision and
the miles-per-gallon obtained by the 2010 model q cars is normally distributed with a mean of 22 miles-per-gallon and a
Conduct a hypothesis test to determine whether the average life expectancy of female Bostonians is higher than that of male Bostonians. Test at the 10% significance level. Run both a critical value and p-value test
A study report in Journal of Small Business Management (1977) concluded that self-employed individuals experience higher job stress than individuals who are not self employed.
a new drug is being tested for its effecctiveness to treat a certain type of infection. it was effective for 125 cases
a telephone survey commissioned by the new zealand health service found that 16 of new zealanders consume more than 10
heights of men on a baseball team have a bell-shaped distribution with a mean of 169 cm and a standard deviation of 5
Comment on the explanatory power of the regression equation and interpret the partial regression coefficients.
A hash table has space for 100 records then. what is the the probability of collision before the table is 10% full?
suppose we toss a fair die twice. let e denote the event that the sum of the two tosses is 7 and f denote the event
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