Listed below are the numbers of years that archbishops and monarchs in a certain country lived after their election or coronation. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Use a 0.05 significance level to test the claim that the mean longevity for archbishops is less than the mean for monarchs after coronation. All measurements are in years. Click the icon to view the table of longevities of archbishops and monarchs. ..... What are the null and alternative hypotheses? Assume that population 1 consists of the longevity of archbishops and population 2 consists of the longevity of monarchs. OB. Ho: H1 H2 H:H1 # H2 A. Ho: H1 H2 H:H1 H2 O D. Ho: H1 #H2 H: H1> H2 The test statistic is (Round to two decimal places as needed.)

Describe the three measures of variability; the range, variance, and standard deviation.  Explain the impact of outliers on measures of variability.

A company conducted a survey to determine the average age of its employees. The ages of 10 randomly selected employees are as follows: 25, 28, 30, 35, 40, 42, 45, 48, 50, and 55. Calculate the sample mean, sample variance, and standard deviation of the ages.

ryan has collected data on individual income (reported in dollars) and has not found any outliers. ryan wants to calculate the average income in his data. which measure of central tendency should he use? -mean -variance -mode -median

Use software or a calculator to find the​ range, variance, and standard deviation of the following body​temperatures, in degrees​ Fahrenheit, taken at​ 12:00 A.M. I don't remember how to find variance on a TI-83 Plus calculator and translate standard deviation. HELP!

Calculate the mean, median and sample standard deviation for the following data.      1, 5, 2, 6, 8

Calculate the below for the following data set: {5, 7, 9, 1, 2, 3, 4, 6}, Round to the nearest hundredth.  Mean  Sum of Squares  Variance  Standard Deviation

what was the age distribution of prehistoric Native America? Extensive , anthropological studies in the southwestern United states gave the following information about a prehistoric extended family group of 82  members on what is now a native american reservation. for this community, estimate the mean age expressed in years, the sample variance, and the sample deviation. For the class 31 and over, use 35.5 as the class midpoint. 39,16, 20,7