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Using software. In given Example we calculated the 95% confidence interval for the U.S. college student average number of hours spent per month watching videos on a mobile phone. Use software to compute this interval and verify that you obtain the same interval.
Example 90% versus 95% confidence interval. For the previous problem, if you were to use 90% confidence, rather than 95% confidence, would the margin of error be larger or smaller? Explain your answer.
a draw thenbspscatter plotnbspfor the variables.b compute thenbspcorrelation coefficient. usenbspthree
Determine if there is evidence of a difference in the mean prices of drugs at the three online sites and use the Tukey procedure to determine which site prices differ?
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighted on a very accurate scale. The results in grams were:
Based on the chi-square table, what is the most accurate statement that can be made about the p-value for the test?
Evaluate the value of the F statistic for Devices- I plan an experiment to test the latest conflicting diet programs. The factor for Diet will involve three different levels: low fat, low carbohydrate, and low calorie. The other factor will involve..
consider a data set in which all observations are equal. find the range variance and standard deviation for this data
the american council of education reported that 47 of college freshmen earn a degree and graduate within five years
Assume that a random sample is used to est. a population proportion p. find margin of error E that corresponds to the given statistics and confidence level. 98% confidence sample size 1166 of whic are 35% successes. What is margin of error?
Draw a box-and-whisker plot for the data set. Find the variance and the standard deviation. please help me as soon as possible please!!! thank you
you are a real estate agent and you are trying to predict home prices for your clients that want to list their house
If the manager decides to spend $3000 on advertising, based on the simple linear regression results given above, what would the estimated sales be?
flaws occur in mylar material according to a poisson distribution with a mean of 0.05 flaw per square yard. round your
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