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Calculate the z score for a raw score of 10 from the folowing scores:10,20,25,5,30. Based on your anser ,approximately what percentile does the raw score of 10 represent?
The table below gives the loan requests (in thousands of dollars) for the past 12 months. Would you say that the local business economy is heating up or cooling down? Explain your answer. Graph the data.
A particular factory can only inspect 46 mice per hour with a standard deviation of 10. At alpha=0.02 company have reason to believe that these inspectors are slower than average?
Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. Find the probability that a randomly selected TV will have a replacement time less than 5 years.
If the mean systolic blood pressure is 130 and the standard deviation is 8, find the upper and lower readings that would qualify people to participate in the study.
A government survey conducted to estimate the mean price of houses in a metropolitan area is designed to have a margin of error of $10,000.
Test the following claim about the difference between 2 populations proportions p1 and p2 for the given level of significance a and given sample statistic. Is it right-tailed, left-tailed, two-tailed. Assume the sample statistic are from independe..
Compute the length-of-life value for which 10% of the watch's batteries last longer.
Do you believe that the government should or should not be allowed to prohibit teachers from expressing their religious beliefs in public schools classrooms?
Given that 61% of eligible voters actually did vote, find the probability that among 1002 randomly selected eligible voters, at least 701 actually did vote.
The box plots below show the real estate values of single values of single family homes in two neighboring cities, in thousands of dollars.
Describe the purpose of transforming raw scores into standard scores. Describe what "normal distribution" means.
A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position.
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