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The parts of this exercise concern the variable Ideal Height, which is the respondent's desired height as reported by n = 149 college women.
a. Use information given by the applet to explain whether or not the Empirical Rule applies for Ideal Height.
b. Assuming the Empirical Rule applies, give numerical values for the interval that will contain about 99.7% of the data values.
c. Compare the interval found in part (b) to the histogram of the data. Explain whether or not the interval is a reasonable description of the data.
Say that the mean difference between fuel efficiency in city and highway driving for 632 vehicles was 7.37 mpg with a standard deviation of 2.52 mpg. Find a 98% confidence interval for this difference and interpret it in context
your factory receives 3 lots of screws. there are 100 screws in lot 1 200 in lot 2 and 300 in lot 3. lot 1 contains 1
Would it be unlikely for them to find fewer than 65 children with the gene? Calculate the z-score and base your response upon the z-score.
What scale is used to measure delivery performance? What kind of variable is delivery performance? Construct a frequency table for delivery performance for last month.
Players in a particular sports league are classified based on the amount of time they play as backups or starters.
Most traffic lights are set so that there is enough time for pedestrians to cross the road safely. A recent study indicates that a large number of elderly cannot get across the road in the usual 15 seconds allowed.
The standard deviation of test scores on a certain achievement test is 11.3. If a random sample of 81 students had a sample mean score of 74.6, find a 90 percent confidence interval estimate for the average score of all students.
Students will meet the required "oral" component of the presentation by posting a PowerPoint presentation including the following criteria:
Get the data on eruption times and waiting times between eruptions of the Old Faithful geyser from the website. Estimate the mean waiting time and give a standard error for the estimate. Also, give a 90 percent con?dence interval for the mean wai..
A rectangular field has to be formed with a given total fence length of P meter of fence material. Find the dimensions of the rectangle which will maximize the fenced area.
Does every monotonic social welfare function satisfy the unanimity property?- Does every monotonic social welfare function satisfy the independence of irrelevant alternatives property? Justify your answer.
This problem related to Basic Statistics and it is about computing the probability of scoring less than average in organic chemistry. The computation has been given in the solution
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