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A laboratory in New Mexico is interested in finding the mean chloride level for a healthy resident in the state. A random sample of 70 healthy residents has a mean chloride level of 104mEq/L. If it is known that the chloride levels in healthy individuals residing in New Mexico have a standard deviation of 38mEq/L, find a 95% confidence interval for the true mean chloride level of all healthy New Mexico residents. Then complete the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place.
a) What is the lower limit of the 95% confidence interval?
b) What is the upper limit of the 95% confidence interval?
thirty 30 students were asked if they voted for hilary clinton or john nosh for president. eighteen 18 said that they
a bagel shop wants to estimate their daily demand for their popular poppy seed bagel. the shop owner determined that
the management of macij corporation is trying to determine the amount of each of two products to produce over the
you conducted a chi-square goodness of fit test in your asci 691 capstone project. unfortunately you did not get the
A professor of statistics refutes the claim that the average student spends 3 hours studying for the midterm exam. Which hypothesis is used to test the claim
Take pM and pF to be the proportions of all college males and females who worked last summer. We conjectured before seeing the data that men are more likely to work. The hypotheses to be tested are?
Let random variable X represent number of heads on first toss and y total number of heads from three tosses. Sketch tree view with X as first level and Y/X as second level and determine conditional probability p(Y=2/X=1).
Define Population 1 as the Deerfield course and Population 2 as the Pike Creek course. Construct a 95% confidence interval for the difference in population mean and interpret the results.
In 2008, a Gallup Poll asked 2335 U.S. adults, aged 18 or over, how they rated economic conditions. In a poll conducted from January 27-February 1, 2008, only 24% rated the economy as Excellent/Good.
Perform exploratory data analysis on the relevant variables in the dataset. When possible, include appropriate graphs to help illustrate the dataset.
You just saw an ad on television that states the majority of the population would vote to make smoking illegal. The poll that is referenced shows 53% of those asked supported making smoking illegal.
Calculate the correlation coefficient and prediction equation.
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