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A newspaper is conducting a statewide survey concerning the race for governor. The newspaper will take a simple random sample of n registered voters and determine X = the number of voters that will vote for the Democratic candidate. Is there evidence that a clear majority of the population will vote for the Democratic candidate? To answer this, they will test the hypotheses H0: p = 0.50 versus Ha: p > 0.50. If n = 1200 and X = 640, what is the P-value for this hypothesis test?
Let X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations of X and Y.
Given this information, what is the probability that the mesh polo shirt came from box 1? (Round your answer to 3 decimal places.)
suppose we draw two tickets from a hat that contains tickets numbered 1234. let x be the 1st number drawn and y be the
Ninety-eight heterosexual couples, at least one of whom was HIV- infected, were enrolled in an HIV transmission study and interviewed about sexual behavior.A summary of condom use reported by heterosexual partners. How strongly do the couples agre..
a rapid test for the presence in the blood of antibodies to hiv the virus that causes aids gives a positive result with
question 1 a sample of the various prices for a particular product has been conducted in 16 stores which were selected
a regional track championship has decided that they will invite the fastest 15 of runners in their region runners with
Likert scale- based questionnaire & responses for 30 respondents showing the number of respondents for each respond option
You can allow the cup to overfill 4% of the time. What amount should you set as the mean amount of coffee to be dispensed?
Test the hypothesis that the median ?uoride level for this city is 0.90 against the alternative that the median is different from 0.9 at α = 0.01, using (a) the large sample sign test, and (b) the Wilcoxon signed rank test. Interpret the results.
A real estate agent has 2 tours. The first tour through N1and has 10 homes for sale, whereas the second tour through N2and has 5 homes for sale.
the following table shows part of the probability distribution for a random variable x.x fx0 0.21 ?2 0.153 ?4 0.15a.
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