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IN a survey 427 different women are randomly selected without replacement and each woman is asked what she purchased online. Responses consisted of whether clothing was identified. Determine whether its a binomial or not and if not identify at least one requrirement that isn't satisfied.
A sample of 16 batteries reveals a mean of 3.45 years and a standard deviation of 0.3 years. Find a 95% confidence interval for the population mean.
a confidence interval with a 95 confidence level for the proportion of voters who are in favor of the proposition in a
The design tolerance thickness for an automotive part is 55 mm to 65 mm. If the process mean thickness is 61 with a standard deviation of 2.3 mm, then what percentage of the sheets will be acceptable? (i.e. What percentage will fall within the des..
A random variable X that has pmf given by p(x) = 1/ (n+1) over the range Rx = {0,1,2,...,n} is said to have a discrete uniform distribution. Find the mean and variance of this distribution.
The mean yearly amount earned is $40,000 and the standard deviation is $5,000. What percent of the sales representatives earn more than $42,000 per year?
The study was done to distinguish people's religion with how many days that they have said they have been calm in past three days. Determine proportion of Catholics were calm for 1 out of 3 days?
If the shop does not want to give more than 1% of its customers a free lube and oil change service, how long should the guarantee be?
A fast-food franchiser is considering building a restaurant at a certain location. Based on financial analysis, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
What is the probability that a new cup will overflow when filled by the automatic dispenser? At what value should the mean amount dispensed by the machine be set to satisfy this wish?
Is it reasonable for the manufacturer to claim that the drill bits will last 2.5 hours?
A customer wants delivery to be ensured between 10 am and 2 pm. Your truck leaves the factory at 4 am and time taken to reach the customer is normally distributed with an average of 8 hrs and a standard deviation of 1 hr.
consider a continuous time markov chain with three states 123. suppose that v1 2 v2 3 v3 5 and that the embedded
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