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Estelle McCarthy, a candidate for state office in New Jersey, has been advised that she must get at least 65% of the union vote in her state. A recent political poll of likely voters included 800 union-member respondents, and 60% of them said they intended to vote for Ms. McCarthy.
Based on the survey, construct and interpret the 95% confi- dence interval for the population proportion of likely-voter union members who intend to vote for Ms. McCarthy. Is the 65% level of support within the confidence interval?
Given your answer to the preceding question, comment on the possibility that Ms. McCarthy might not succeed in obtaining the level of union support she needs.
Someone selects one ball randomly from each box. So totally, three balls are taken out from three boxes. Find the probability that there are exactly one white ball among selected 3 balls.
What is the observed or computed value of t? What is the value of the degrees of freedom that are reported in the output? What is the level of significance reported in the output
question 1 the performances of a group of interns are evaluated by their supervisors at the end of their
The midpoint for each class (enter in table above): Calculate the estimated arithmetic mean of the sample Calculate the estimated arithmetic median of the sample
A class of fourth-graders was asked to bring a pumpkin to school.- Verify that the sample mean, trimmed mean, and median are X‾= 229.2, X‾t = 220.8, and M = 221.
We recalculated our comparison of ideal number of children, this time only for women, separating them into two groups, those who indicated that they were "very happy" or "not at all happy" with life.
four people are randomly from a group consisting of six men and six women. what is the probability that the group will
consider a company that selects employees for random drug tests. the company uses a computer to randomly select
a particularly long traffic light on your morning commute is green 20 of the time that you approach it. assume the
The daily revenue totals for the next 30 days will be monitored. What is the probability that the mean daily revenue for the next 30 days will be between $7000 and $7500?
past surveys reveal that 30 percent of tourists going to las vegas to gamble spend more than 1000. the visitors bureau
according to the national education association the mean salary of public school teachers was 35819 in 1994. assume
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