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of 300 female registered voters surveyed 120 indicated they would vote for the incumbent president; while 400 male voters 180 indicated they would vote for the incumbent. a = .05 test to see if there is a significant difference between proportions of females and males who plan to vote for the incumbent president. what is the p value of the test.
SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. What percent of test takers score less than 300?
probability of 0.31 that it is dominant. There is also a probability of 0.22 that a gene is type B and it is dominant. What is the probability that a gene is of type A?
Based on these data, determine the 95 percent confidence interval estimate for true population mean?
Drug manufacturer knows that for a certain antibiotics, the average number of doses ordered for a patient is 20. Steve Simmons, a salesman for the company
Tthe population standard deviation is not equal to 8 at the 0.05 level of significance. Calculate the value of the test statistic.
Critically discuss how someone may use measures of central tendency, variation, or position in their home, school, or workplace.
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Our customers expect a call to be completed in 22 minutes. Using the data above, does either of our call centers meet this expectation with an alpha level of 0.05?
A manufacturer claims that the mean lifetime,M , of its light bulbs is 51 months. The standard deviation of these lifetimes is 9 months. Ninety bulbs are selected at random, and their mean lifetime is found to be 53 months.
One group was enquired, questions what they saw. One group was enquired, "About how fast were cars going when they smashed into each other?"
Evaluate the functions for the value of x given as 1,2,4,8,and 16. Describe the difference in the rate at which each function changes with increasing value of x; rank the function from fastest-growing to slowest-growing?
In what sense is this business problem? A societal problem? An individual problem?
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