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What equations do I need to use to solve the following equations? I am struggling. -If one-third of the University of Wisconsin teaching assistants (TAs) sign a petition calling for a collective bargaining election, an election will be held. A survey of 50 TAs indicates that 40% will sign the petition. What is the probability that a sample such as this could have occurred if one-third or fewer of the TAs in the population will sign such a petition? -The mean number of persons shot by the Metro City Police Department in an hour is 0.042. What is the probability that the MPD will shoot no one in a 24-hour period? What is the probability that the MPD will shoot one person? Two persons? More than two persons? Explain your work. -The mean number of major fires in Flandreau, South Dakota, is 0.057 on any given day. What is the probability that no major fires occurring in any given week? What is the probability of one major fire? Two major fires? Three or more major fires? -The mean number of murders reported in Metro City during the 8-hour graveyard shift is 0.5 for any hour. It takes two people two hours to investigate a homicide call. How many officers should be assigned to the homicide squad during these hours? -The Madison Fire Department's files reveal that an average of six firefighters a year suffer heart attacks while on duty. The personnel office is concerned about this because it must budget funds for disabilities. There are some concerns that the physical condition of firefighters is getting worse. This year, nine firefighters suffered heart attacks. What is the probability that an event of this severity will occur? Given past history, what is the probability that no heart attacks will occur? Exactly one? Exactly two? Three or fewer?
Create a histogram for the following data of the number of miles from residence to place of employment for 30 randomly selected residents of Middletown County.
Enzymatic method: 13.1, 12.7, 12.6, 13.3, 13.3. GC method: 13.5, 13.3, 13.0, 12.9. Does the enzymatic method give the same value as the GC method at the 95% confidence level?
A fair, six-sided die is rolled 3 times. What is the probability of getting a 5 or greater on exactly two of the rolls? Example: According to the Facts 2006 webpage, 53% of UI students are men.
The formal addition rule expressed the probability of a or b as follows: p(a or b) =p(a)+p(b)-p(a and b). Rewrite the expression for p(a or b) assuming that the addition rule uses the exclusive or instead of the inclusive or (recall that the exclusiv..
About one-third of the students entering a certain university drop out during or at the end of their first year." Does this statement illustrate percentage, proportion or probability?
In a school how is ztest used in time table ... one group that studies 7 periods a day of 45 mins each class and the other group can choose semester wise classes and their time period is 90 mins
Briefly explain how the standard deviation influences outcome of hypothesis test. How does σ influence measures of effect size?
The cell phone industry is growing at a rapid pace. Current estimates suggest that 60% of people have cell phones. Suppose 25 people were randomly and independently sampled.
A company uses the formula C(x) = 0.02x^2 - 3.4x + 150 to model the unit cost in dollars for producing x stabilizer bars. For what number of bars is the unit cost at its minimum?
Compute the optimal production quantities for the company?
Using Sally's estimate of demand that follows, how many T-shirts should she produce for the upcoming event?
What proportion of children 10 to 15 years of age have total cholesterol between 180 and 190? B. what proportion of children 10 to 15 years of age would be classified.
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