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A sample of 14 fish from Lake Norman gave the mean weight of x1=23 ounces with a standarddeviation of s1= 3 ounces. A sample of 16 fish from Lake Wylie gave the mean weight of x2=25ounces with a standard deviation of s2=4 ounces. Assume that the weight of fish for both lakesare normally distributed with equal population standard deviations. Test at =.01 significance level,if the mean weights of fish are different for these two lakes
What is the correct decision - In testing if the diameter of a tree is significant, state the null and alternative hypothesis - Write down a second order linear model with interaction.
Assuming that the heights are recorded to the nearest half-centimeter, how many of these students would you expect to have heights.
Analysis of qualitative research data. In this assignment, you will consider the ethical issues of qualitative research and use SPSS to analyze some sample data.
the probability density function of the net weight in pounds of a packaged chemical herbicide is fx 2.0 for 49.75 lt
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.
Researcher expects 12 point treatment effect and plans to use two-tailed hypothesis test with u α = .05. Calculate the power of test if researcher uses a sample of n = 16 individuals.
A law student, who want to check a professor's claim that convicted embezzlers spend on average 12.3 months in jail, takes a random sample of 36 such cases from court files.
1. tensile strength tests were carried out on two different grades of wire rod resulting in the accompanying datagrade
Interpret the regression coef?cient. Are subjects in the U.S. more willing to pay extra for non-biotech breakfast cereals than U.K. subjects, or are they less willing?
a new over-the -counter cold medication includes a warning label stating that it may cause drowsiness. a researcher
the average age for licensed drivers in a county is micro 42.6 ? 12 and the distribution is approximately normal. a
15% of the south district students failed, and 5% of the central district students failed. Develop a probability tree showing all marginal, conditional, and joint probabilities.
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