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Listed below is a list of how long it takes for bands on stage to complete their first song (in seconds).
538 312 327 309 344 313 318 315 325 331 312 314 What is the mean time it takes for bands on stage to complete their first song (in seconds)? Round your answer to two decimal places.
assume the distribution of heights among all 15 year old boys is normally distributed with mean 67 and standard
1.a newspaper conducted a statewide survey concerning the 2000 race for state senator. the newspaper took a random
If an original set of measurements is made in inches and has mean of 36 and variance of 144, what will be the mean, variance, and standard deviation if:
A medical research project examined the relationship between the subject's weight and recovery time from surgical procedure, as shown in the table below.
What measures does your department keep track of - Are they descriptive or inferential data, and what is the difference between these?
A lending institution supplied the following data on loan approvals by four loan officers. Conduct an appropriate Hypothesis test to determine whether the loan approval decision is independent of the loan officer reviewing the loan application.
Let X denote the waiting time until the tenth call arrives. What is the pdf of X? What are the moment generating function, mean , and variance of X?
1. at a big store building with 100 elevators the amount of waiting time for next elevator in seconds is a
NCAA Basketball Tournament. Each year, 64 college basketball teams compete in the NCAA tournament. Sandbox.com recently offered a prize of $10 million to anyone who could correctly pick the winner in each of the tournament games.
Conduct a 3-period moving average, an exponential smoothing forecasting using an alpha of .25, and a seasonal forecast with 3 seasons.
a. Plot £, against £t-1 fort = I. .... 10 on a graph. How is the positive first-order autocue relation in the error terms shown by the plot?
the teacher ratio is 125. currently the school district has 3150 students. if the student enrollment increases by 20
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