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In a survey of undergraduate library usage, it was found that 76% of seniors, 59% of juniors, 50% of sophomores, and 28% of freshmen use the library frequently. Suppose that 17% of the undergraduates are seniors while the corresponding percentages for juniors, sophomores, and freshmen are 18%, 19%, and 46% respectively. What percent of the students use the library frequently? Suppose you see a student use the library everyday. What is the probability that this student is a freshman?
A study was recently done in which 500 people were asked to point out their choices for one of three products. Following table illustrates the breakdown of responses by gender of the respondents.
what additional information is obtained from measurements on an interval scale compared to measurements on an ordinal
the line up contained 5 men. if the identifications were made by ramdom guesses, find the probability thatall witnesses would pick the same person.
She has been a victim of domestic abuse at some point in her life. Find the probability that more than 22 of the women sampled have not been the victim of domestic abuse.
the manager of the hippon drug store is remodeling his facility and is considering three ways of organizing his
If 28% of the residents play poker and garden and 70% of the residents play both shuffleboard and poker, then find the probability that a resident plays poker, given that they garden.
Explain the Continuity Correction Factor and provide a good example and estimate the population proportion
1.using the z table to find the critical values for each p 407 ltbrgta a 0.04 left-tailed test ltbrgtb a 0.05
an automobile mileage study tested the following hypotheses.hypothesish0ugtor equal to 25 mpgconclusionmanufacturers
suppose a fast food restaurant wishes to estimate average sales volume for a new menu item. the restaurant has analyzed
the time to failure of a battery in hours of a personal handheld music device follows an exponential distribution. the
At.05 level of significance, is there evidence to propose that mean life length of batteries produced by this manufacturer is more than 400 hours?
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