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Round Answers to 2 decimal places.
Sample Size (n) = 186Sample Mean = 3103Sample Standard Deviation = 696
A. Construct a 95% Confidence Interval.
B. Modify (change) your sample size to 18600. Construct a new 95% Confidence Interval.
A 95% confidence interval for µ is found to be 652 ± 21.56 = ($630.44, $673.56). Determine which of the following statements is true.
A random sample of 48 managers of large hotels has mean X‾= 5.91. The null hypothesis for the researcher's test is?
Based on a scatter diagram, would you estimate the linear correlation coefficient to be:
Hypothesis test for the difference between two means - Assume the population standard deviations are not the same. At the 0.05 significance level, is there a difference in the mean waiting time?
A frequency polygon: does not depend on one variable. True-False
For a given confidence interval, what is the interpretation of a 96% confidence level?
Compute the value of z and state your decision regarding the null hypothesis.
What would be your best point estimate for average Sales in weeks for which Newspaper advertising were $1 million? What would be an appropriate interval estimate for this?
Determine new, standardized score for each of following values from original population.
In chi-square goodness-of-fit test when there is close agreement between observed frequency and expected frequency, chi-square test value will be small.
The data follow. Males Females 27 25 25 29 19 18 10 23 16 20 22 15 14 19 (a) What statistical test should be used to analyze these data?
Find out the constant using probability density function also cumulative distribution function. Assume X be a continuous random variable with probability density function.
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