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1.) The mean number of English courses taken in a two-year time period by male and female college students is believed to be about the same. An experiment is conducted and data are collected from 29 males and 16 females. The males took an average of three English courses with a standard deviation of 0.8. The females took an average of four English courses with a standard deviation of 1.0. Are the means statistically the same? 2.) A student at a four-year college claims that mean enrollment at four-year colleges is higher than at two-year colleges in the United States. Two surveys are conducted. Of the 35 two-year colleges surveyed, the mean enrollment was 5,068 with a standard deviation of 4,777. Of the 35 four-year colleges surveyed, the mean enrollment was 5,466 with a standard deviation of 8,191. I need these to be solved showing all the work, no calculators "These are to be complete Hypothesis test starting with Ho & Ha and ending with a decision based on the rejection region or the p-value." "Find Z (crit) for two tail test withα =.05"
What is the majority of the type of data summarized on the first page of this article and Measurement or categorical - What population value should be used with data? population mean or population proportion
What assumptions about the number of pedestrians passing the location in an hour are necessary for your hypothesis test to be valid?
A manufacturer of electronics kits has found
Mario, one of the owners of Mi Casa Front Porch Restaurant was looking to improve his planning for capacity. In order to do this, he wanted to understand the probability of people in each party coming to the restaurant. If the mean number of people p..
Regression analysis is one of the most widely used statistical techniques in the social sciences. So, what is it? In your answer, apply some of the techniques we have learned to regression -
A statistical process analyst is responsible for assuring statistical control. In one process, a machine is supposed to drop 11.4 ounces of mints into a bag. (Assume that this process can be approximated by a normal distribution). The acceptable rang..
Believe the consumer advocate's claim? Explain
problem 1a researcher is interested in evaluating whether there is a relationship between number of packs of cigarettes
A department store manager has decided that dress code is necessary for team coherence
A random sample of 25 people employed by the florida state authority established they earned an average wage( including benefits ) of $65.00 per hour . a. what is the popular mean? what is the best estimate of the population mean ? b.develop a 99% co..
The degree of flatness or peakedness of a population
Students MUST use a minimum of at least five references for the city report, three of which cannot come from material presented in the class. Sources from Wikipedia, etc. are not acceptable references and should not be used.
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