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A brand name has a 60% recognition rate. If the owner of the brand wants to verify that rate by beginning with a small sample of 10 randomly selected consumers, find the probability that exactly 6 of the 10 consumers recognize the brand name. Also find the probability that the number who recognize the brand name is not 6.
what will be the standard deviation of the share price if it is assumed that there is a 95% probability that the value will be at least 64?
An electronic circuit board fails randomly with failure rate of λ=0.00021 /h. When it fails it is replaced by a new board.
One environmental group did a study of recycling habits in a California community. It found that 73% of the aluminum cans sold in the area were recycled. (Round your answers to four decimal places.)
Based on these data, determine the 95 percent confidence interval estimate for true population mean?
The hypotheses for this scenario are as follows: Null Hypothesis: μ ≤ 21.61, Alternative Hypothesis: μ > 21.61. You perform a one sample mean hypothesis test on a random sample of data and observe a p-value of 0.0095. What is the appropriate concl..
Assume that we will randomly select a sample of 64 measurements from a population having a mean equal to 20 and a standard deviation equal to 4.
Construct the 90% confidence interval for the true population proportion of all voters in the state who favor approval.
Suppose that monthly rental rates for unfurnished one-bedroom apartment in Ann Arbor, Michigan, are approximately normal in distribution, with a mean of $750 and a standard deviation of $150.
Find the value of q-hat from proportion and degrees of freedom used to find the t-score.
Be certain to mention the direction of the relationship, the strength of the relationship, and whether our findings are statistically significant
We want to test the hypothesis that population B has a smaller variance than population A.
A small town has a population of 20,000 people. Among these 1,000 regularly visit a popular local bar. A sample of 100 people who visit the bar is surveyed for their annual expenditures in the bar.
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