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You take a random sample of 100 pins from the lot supplied by the vendor and test them. You find 8 of them defective. What is the 95% confidence interval for percentage defective in the lot?
question a market researcher wants to test to determine if families of four in city a spend less per week on average
the mean monthly rent for a sample of studio apartments in one city is 1260 with a standard deviation of 230. the
the number of items rejected daily by a manufacturer because of defects was recorded for the past 30 days. the results
If the price is 9 on Monday, what is the probability that it will be 11 on Friday? Find the proportion of the time, in the long run, that the price will be each of the three possible values.
In a survey of 900 adults, 240 said that they watched the World Cup final on television. Using these sample statistics, calculate the margin of error, E, for a 90% confidence interval for the proportion of all adults that watched the World Cup final ..
The assumption of independent error terms in regression analysis is often violated when using time series data and is called the problem of Autocorrelation.
Write a computer program that implements betting system. As stated above, your program must decide whether to bet on a particular outcome before that outcome is determined.
Make a scatter plot. Do you expect a positive, negative, or zero correlation? Why? Find the correlation coefficient and the equation of the line of best fit and write them down
Following the new training program, a random sample of 235 prospective attorneys was selected, and among this sample 52.8% passed the bar exam. Is there sufficient evidence to conclude that there is a change in the proportion or people passing the..
Describe a 5-step hypothesis test for two variances for a particular claim related to a real life experience. You need to state the claim, define the null and alternate hypothesis
Of the adults in Jefferson County, 10% have had CPR training
a particular pitching machine is manufactured so that it will throw the ball into the strike zone of a 6-foot batter 90
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