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Question: 1. An electronics store expects to have ten returns per day on average. The manager wants to know the probability of the store getting fewer than eight returns on any given day. State the probability question mathematically.
2. An emergency room at a particular hospital gets an average of five patients per hour. A doctor wants to know the probability that the ER gets more than five patients per hour. Give the reason why this would be a Poisson distribution.
A market research worker interviewed a random sample of 18 people about their use of a certain product.- Estimate the population proportion of users of the product.
a. What is the expected weekly output? b. What are its variance and standard deviation?
What is the probability that a batch will be acceptable to the consumer? Is the probability large enough to be an acceptable level of performance?
What is the probability that he or she is a Coalition voter (rounded to 3 decimal places)?
To use the t statistic to test for differences between the means of two populations based on independent samples, what assumptions must be made about the two sampled populations? What assumptions must be made about the two samples?
Table 5.12 summarizes eight studies in China about smoking and lung cancer.a. Fit a logistic model with smoking and study as predictors. Interpret the smoking effect.
Assume the null hypothesis is that μ = 50 and that the graph shown below is the sampling distribution of the mean (M). Would a sample value of M= 60 be significant in a two-tailed test at the .05 level? Roughly what value of M would be needed to b..
Examples of how categorical data is used in the workplace. As a hint, type "categorical data" followed by a topic of interest to you into the search engine. Carefully review the search results. Post two to tree paragraph summary of your results. A..
You are stopped at the checkpoint and, of course, have not been drinking. What s the probability that you are detained for further testing?
a.) What percentage of customers will receive a free oil change coupon?
Lenght Of Pregnancy. A woman wrote to Dear Abby and claimed that she gave birth 309 days after a visit from her hushand , who was in the Navy. Lengths of pegnancies have a mean of 268 days and a standard deviation of 15 days. Find the z score for 308..
in a particular city the average salary of secretaries is 30000 per year. secretaries at company a claim that they are
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