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In a random sample of 200 automobile insurance claims obtained from all state insurance Company, mean=$615 and s= $135. Calculate the following intervals:
a) An interval that has at least 75% of the data within it.
b) An interval that has at least 89% of the data within it.
Please show work.
Is there evidence that the population mean amount is different from 8.17 ounces? (Use a 0.05 level of significance and determine the p-value and interpret its meaning.
Determinant of Capital Structure of Listed Companies in China from 2011-2016 - Factors that determine the capital structure of enterprisesfrom 2011-2016
What is the probability that the mean duration of these patients pregnancies will be less than 258 days?
A restaurant claims that its speed of service time is less than 18 minutes. A random selection of 36 service times was collected, and their mean was calculated to be 17.1 minutes.
The average for the test is a 1700 and the population's standard deviation is 50. what percentile rank of students is Logan in based on her SAT score.
A random sample of 56 fluorescent light bubs has a mean life of 645 hours with a standard deviation of 31 hours.
two random samples are taken with each group asked if they support a particular candidate. a summary of the sample
If the null hypothesis is "the stadium is structurally sound," and the alternative hypothesis is "the stadium is not structurally sound," which type of error (Type I or Type II) would the engineer least like to commit?
Indicate which of the following situations involve descriptive statistics and which involve inferential statistics:
given that the probability density function is fx thetaxtheta-1for testing parameter theta ho theta 1 and h1 theta 2
If you have a distribution with more than 1 mode, what does this suggest about your participants?
In 1997, a survey of 900 households showed that 151 of them use e-mail. Use those sample results to test the claim that more than 15% of households use e-mail. Use a 0.05 significance level. Use this information to answer the following questions?..
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