Mathematics, 06.05.2020 00:09 asdasddas776
A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the 0.10 significance level, is there a difference in the population means?
(a) state the decision rule
(b) compute the pooled estimate of the population variance
(c) compute the test statistic
(d) state your decision about the null hypothesis
(e) estimate the p-value.
Answers: 1
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Mathematics, 21.06.2019 18:30
You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?
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Mathematics, 21.06.2019 19:00
Analyze the graph of the cube root function shown on the right to determine the transformations of the parent function. then, determine the values of a, h, and k in the general equation. y=a3x-h+k h= . k= done 000000l o 7 of 8
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Mathematics, 21.06.2019 21:40
The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?
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A random sample of 15 observations from the first population revealed a sample mean of 350 and a sam...
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