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Problem: Estimate the the mean weight of the local adult population of female white-tailed deer (doe). From past data, its estimated that the standard deviation of all adult female white-tailed deer in this region to be 25 pounds. What sample size would be needed to in order to estimate the mean weight of all female white-tailed deer, with a 98% confidence level, to within 7 pounds of the actual weight? (Use Excel to find the appropriate critical value)
(a) For the same data and null hypothesis, is the P-value of a one-tailed test (right or left) larger or smaller than that of a two-tailed test? Choose one
a. Was this a paired or a two-sample study? b. Was this an observational study or an experiment?
Identify a qualitative and quantitative variable. If you need to use two data sets to have both a qualitative and quantitative variable, that is okay.
A college athletic program wishes to estimate the average increase in the total weight an athlete can lift in three different lifts after following.
What is the most important feature in the economic measure pursued by Allauddin Khilji?
A bonding company want to insure a construction projects completion. If the project is cancelled due to the contractor's lack of performance
Each American uses an average of 650 ibs (285 kg) of paper a year. Suppose that the distribution is approximately normal.
A random sample of 56 tourists gives x‾ = $258 and s = $85. Give a 95% confidence interval for the average amount spent by a tourist at the shopping area.
Bernoulli. Can we use probability models based on Bernoulli trials to investigate the following situations? Explain. a) Each week a doctor rolls a single die to determine which of his six office staff members gets the preferred parking space.
production engineers at sinotron believe that a modified layout on its assembly lines might increase average worker
What is the probability that the chosen manager will be either a woman or over 50 years old or both? Solve both directly from the data and by using the law of unions. What is the probability that the chosen manager will be under 30?
Why is it important to study ethics in statistics? Have you seen statistics misused? Without naming specific companies or people, can you provide examples?
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