Find time when people will be at given distance
Two people begin jogging at same time in straight paths but in opposite directions. One person jogs at 9 mph and other person jogs at 3 mph. Find time when they will be 3.6 miles apart?
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Using the estimation given above, estimate the sample size needed to determine the proportion of people who wants internet to in 0.02 with 95% confidence.
Is there important evidence at = 0.10 level against hypothesis that mean is 32,500 pounds for two-sided alternative?
A random sample of n=12 of roses was chosen nad the length of roses measured resulting in these observations:
Create the stemplot of times. Distribution is roughly symmetric and single-peaked, so distribution of must be close to Normal. Assume that standard deviation 15 minutes is not changed by odor.
Assume that it takes someone 17 minutes to get to school when average speed of car is 40 miles per hour. Determine time it takes for someone to get to school when average speed is 19 miles per hour.
Analyze distribution of data. What feature of distribution throws doubt on validity of statistical inference? Plot percents against year.
Describe clearly and briefly what "95% confidence" means. Is study good evidence that needing values affirmation training of all female students would greatly decrease gender gap in scores on science tests in college courses?
One thousand Florida residents were asked if they would elect republican or democratic candidate for Governor in next election. 540 out of 1000 responded that they would vote for Democratic candidate. Which of the following statements correctly st
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