Mathematics, 05.05.2020 22:22 simiyi1983
A simple random sample of the size n is drawn from a normally disturbed population and the mean of the sample is x, while the standard deviation is s. What is the 99% confidence interval for the population mean? Use the table below to help you answer the question.
Answers: 2
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55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?
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Let x = a + bi and y = c + di and z = f + gi. which statements are true?
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Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10
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Mathematics, 22.06.2019 04:00
5. divide and simplify if possible. √250x16√2x 6. what is the solution of the equation? √2x+13−5=x
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A simple random sample of the size n is drawn from a normally disturbed population and the mean of t...
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