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A tossed a coin into the air 7 times to test whether the coin is biased.
The observed outcome was HHHTHHH. Consider the following statements:
I. Our opinion about the null hypothesis is the same if the outcome was THHHHHH.
II. We do not reject at the 5% significance level that the coin is unbiased.
which ones is correct and wrong? Why? Please provide a mathematical steps if necessary.
This week examine the television advertisements of three different products or services and report on the features, advantages, and benefits
Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. What is the p-value? Using a .05 level of significance, what is your conclusion?
the expected values for each cell in a chi-square test are the values to be expected in each cell ifanswerthe sample is
Equation (4.129) may be used to reduce the amount of computation required to set-up the covariance normal equations.
Suppose that the license will be awarded on the basis of a first-price auc-tion. What are the equilibrium bidding strategies? What is the expected revenue of the seller, that is, the holder of the patent?
A sociologist interested in cultural differences compared women of two ethinic groups on a Role Approval Index. If you conduct a t test for independent means, how many degrees of freedom are in the t distribution?
Also, 77 percent of managers have MBA degrees. Using probability formulas, determine proportion of employees who either have MBAs or are managers.
The box plots below show the real estate values of single values of single family homes in two neighboring cities, in thousands of dollars.
If k people are seated in a random manner in a row containing n seats (n > k). what is the probability that the people will occupy k adjacent seats in the row?
From the weight-loss example discussed in this section, we learned that increasing the sample size fourfold would about halve the range of possible sample.
When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement
Nursing program gives a qualifying exam to students applying for admission. The grades on the exam have a mean score of 80 with a standard deviation of 6. Describe the distribution of grades.
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