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a. Ameteorologist in Denver recorded Y =the number of days of rain during a 30-day period. Does Y have a binomial distribution? If so, are the values of both n and p given?
b. A market research firm has hired operators who conduct telephone surveys. A computer is used to randomly dial a telephone number, and the operator asks the answering person whether she has time to answer some questions. Let Y = the number of calls made until the first person replies that she is willing to answer the questions. Is this a binomial experiment? Explain.
Evaluate your histograms for any outliers in your data. Based on your evaluation of outliers, you may trim no more than 1% of the data contained in the data set. This must be done symmetrically (i.e., trimming no more than 0.5% off the top and 0.5..
If level of significance ( α ) is 0.005 in two-tail test, how large is non rejection region under curve of the t distribution?
According to the website of mars, 21% of m&m's produced are green. suppose 4 candies are selected at random and number of green recorded create a probability distribution for this situation.
select a company that u can visit in person or interviewon the telephone. call ahead to the company to arrange a time
for women age 25-34 with full-time jobs the average income in 2004 was 32000 and the sd for income was 26000. assuming
You do not need to collect data and actually conduct the test calculations. Rather,state the claim, define the null and alternate hypotheses, identify the test significance and the test statistic, and state the decision rule that will be used.
Explain the difference between a population and a sample. In which of these is it important to distinguish between the two in order to use the correct formula?
What is the Spearman coefficient of rank correlation, what range of values can it have, and how is its numerical value interpreted? Two travel editors have each ranked 10 popular vacation spots according to the value they represent for the money..
the prevalence of tuberculosis in cows is known to be 6. in a randomly chosen sample of 100 cows from a herd of 5000
A building contractor pays $500 to bid on a contract. If he gets the contract, the probability of which he estimates to be 0.70, he will make a profit of $50,000.
suppose you have a coin that lands on heads with probability p 0 lt p lt 1. you dont know the value of p however. so
question grades for ten students are 88 93 83 97 73 88 85 59 73 and 79. determine the followinga. measures of central
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