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The researcher asked 50 women and 50 men "What causes poverty in America?" Out of the 50 women, 21 of them answered that "circumstances beyond people's control cause them to be poor," as opposed to 14 men answering it the same way. At a significance level of 0.05 can it be determined that Women care more about people in need than men do?
Discuss the reason that sampling distribution of the mean follow a normal distribution for a large enough sample size, even though the population may not be normally distributed?
Person repeatedly and independent flips the fair coin to decide whether to take the step to left or to right from a point X. Find out expected number of times person returns to X.
find the value of the test statistic z using the claim is that more than 75 of adults always wear a seat belt in the
Which of the following is true about a 95% confidence interval of the mean of a given sample:
a usa todaycnngallup survey of 369 working parents found 200 who said they spend too little time with their children
the waiting times in minutes for 11 customers at a supermarket are 13951547911142 and 6. determine the approximate
Assuming that any newspaper left over has no value and that running short has no effect on any customer's tendency to return, determine the losses due to understockting and overstockting.
in a certain town 70 people support the construction of a new ballpark. if 5 people are randomly selected what is the
the u.s. census bureau annual social amp economic supplement collects demographics concerning the number of people in
the number of o-ring failures for the first 23 flights of the us space shuttle challenger were0 1 0 na 0 0 0 0 0 1 1 1
Determine the sample size necessary under the following conditions. To estimate with = 44, E = 3, and 95% confidence. To estimate with a range of values from 20 to 88 with E = 2 and 90% confidence.
the international bottled water association says that americans on the average drink 4.6 8-oz. servings of water a day.
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