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Your sample of 12 people is being compared to a known population with a mean of 200 and a variance of 36. What is the variance of the distribution of means?
A new machine, designed to perform the same job, has produced 500 units with the following results.Can the difference in output be ascribed solely to chance?
Speed of light. In 1882 Michelson measured the speed of light (usually denoted c as in Einstein s famous equation E = mc2). His values are in km/sec.
A coin was flipped 100 times and came up heads 59 times and tails 41 times. The expected outcome was to land on heads or tails 50 times each.
A certain type of tomato seed germinate 90% of the times. if a farmer plants 25 seed, What is the probability that: -exactly 20 germinates more than 19 germinates.
In addition parking time variable collected by the administration is an example of a ___________ random variable and parking are variable is an example of a ____________ random variable.
Data were collected from a process in which the factor of interest was whether a finished item contained a particular attribute.
in an experiment on mosquito insecticide it is found that 80 are killed during the initial application but those that
Mention your decision regarding the null hypothesis. If H 0 rejected can we conclude that treatment 2 and treatment 3 differ? Use 95 percent level of confidence.
The standard deviation for diameter is 0.02 inches. What is the probability that the manufacturing line will be shut down unnecessarily? (Hint: Find the probability of observing an x in the shutdown range when the true process mean really is 0.5..
Create a 95% confidence interval for proportion of highly educated women who left careers for family reasons and who wish to return to work.
a locksmith is preparing an electronic key code of 4 integers selected from the set 0 1 2 3 4 5 6 7 8 9 without
Proportional to xi2, that is Var(εi)=σ2 xi2. Suppose that we use the transformation y'=y/x and x'=1/x. Is this a variance-stabilizing transformation?
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