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A web based software company is interested in estimating the proportion of individuals who use the Firefox browser. In a sample of 200 of individuals, 33 users stated that they used Firefox. Using this data, construct a 99% confidence interval for the proportion of all individuals that use Firefox.
You have asked to research the high absenteeism rate in your company. One required analysis is to be by gender. Assume you have been asked to do the study via a survey.
you plan to develop a new software system that you believe will surpass the success of google and facebook combined. in
Give an example of a problem (business, political, scientific) in which ANOVA analysis would be appropriate. (Hint: the dependent variable is categorical, such as male vs. female or comparing three different types of fertilizer.)
Use normal approximation to determine probability that x = 2. Illustrate all work.
q1. a survey was conducted in five countries.the percentages of respondents who said that they eat out once a week or
Determine the range and standard deviation of the times.
when the null hypothesis is true and n1550 what is the standard deviation of the sampling distribution of
need answers to questions on test.the file is attached with all the questions would like answers for all of
At a 5% level of significance, is there sufficient evidence that the population mean waiting time is now less than 3.7 minutes?
In classical hypothesis testing, test statistic is to critical value what the?
the rent for a one-bedroom apartment in southern california follows the normal distribution with a mean of 2075 per
Standard deviation of 2.5 minutes. What does Chebyshev's Theorem say about the percentage of employees with commuting times between 58.6 minutes and 68.6 minutes?
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