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Why would we use a matched-pairs design and what is an example where this would apply?
Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviation are equal.
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Assume a sample of 60 Americans is taken to further investigate viewing habits. Suppose the population standard deviation for weekly viewing time is Q = 4..
a rational decision maker must choose between two alternatives. alternative 1 has a higher emv than alternative 2 but
Randomly chosen circulated nickels were weighed by statistics student Dorothy Duffy as an independent project. Nickels were weighed on a Mettler PE 360 Delta Range scale, accurate to 0.001 gram. The coin's age is the difference between the current ye..
a random sample of 15 accounting graduates indicated on average they had taken 139 credit units with a standard
Create a hypothesis and write out the eight steps used to apply a statistical test to your hypothesis.
An economic researcher would like to know whether he can reject the null hypothesis at the 0.10 level, that no more than 20% of the households in Pennsylvania make more than $70,000 per year.
the numbers 8 9 10 and 12 are written on separate pieces of paper and put into a hat. two pieces of paper are drawn at
Measures of Central Tendency
if the average number of textbooks in a professors offices is 16 the standard deviation is 5 and the average age of
the average selling price of blackberry smart phones purchased by a random sample of 35 customers in 2010 was 311.
You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?
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