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Girish Shambu and William Reisel are teammates at a discount store: their new job is assembling bicycles for customers. The assembly of a bike has a learning rate of 80%. They forgot to time their effort on the first bike, but spent 6 hours on the second. They have 6 mote bikes to do. Determine approximately how much time will be (was) required for.
a). the first unit =____hours (two decimal points)
b). the 8th unit=____hours( two decimal points)
c). the total amount of hours to build the 8 units=____hours (two decimal points)
in a large population the percentages of males and females are both 50 while 15 are left-handed with the remaining 85
We wish to estimate the population proportion. We want to be 95 percent confident of our results and we want the estimate to be with .01 of the population parameter. No estimate of the population proportion is available. What value should we use f..
it is known that the number of people who enter a bank during a time interval of t minutes is a poisson random variable
A study was conducted with alpha = 0.05 to determine if there is a significant linear correlation between the number of credit hours earned at the time of taking statistics 101 and the grade in the course. Eight pairs of data were collected.
1. consider a continuous random variable x with varx 4. a sample of 50 measurements of x is taken and xbar 68a.
A national survey of restaurant employees found that 75% said work stress had a negative impact on their personal lives. A sample of 100 employees from a popular restaurant chain finds that 68 answer
assume that womens heights are normally distributed with a mean of 63.4 in and a standard deviation of 1.7 in.a. if 1
1. the residents of a housing development for senior citizens have completed a survey in which they indicated how
suppose test scores for a test are uniformly distributed between 51 and 95. let xtest scores. what is the probability a
A random sample of 8 recent batches produced the following yields. Conduct a hypothesis test to determine whether the true mean yield has decreased. Use an a=0.01
If the value of y is 11 thousands, find the probability that these tires will last at most 15,227 miles. You MUST write your answers with 3 decimal places.
the number of customers arriving per hour at a certain automobile service facility is assumed to follow a poisson
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