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1. Assuming random sampling is from a normal distribution with standard deviation σ = 5, if you get a sample mean of X‾ = 45 based on n = 25 subjects, what is the .95 confidence interval for µ?
2. Repeat the previous example, but compute a .99 confidence interval instead.
The amount of growth during a set 15-day period for a population of sunflower plants follows a normal distribution with μ=3.07 cm and σ=0.40 cm.
One group is given the new drug and the other group is given the standard drug. Data are recorded on the effects of each drug. Is the research division using dependent or independent samples? Why?
1.there are two statistics classes. the first has 250 students and the second has 200 students. in the first class the
the measurements of weight of 100 units of a product manufactured by two parallel processes have same mean but the
Create a set of data that can be modeled as a polynomial function. Please provide a reference to the data. Plot the data using Microsoft Excel including the equation for the fit.
If Bambam and Pebbles have a child, what is the probability that the child has both alpha sclerosis and beta dystrophy?
the ceo of a software company is committed to expanding the proportion of highly qualified women in the organizations
At.01 significance level, is there relationship between job pressure and age?
A student is taking a multiple choice exam in which each question has four choices . Assume that the student has knowledge of a correct answer to any of the questions.
There are two coins C1 and C2. C1 has a equal prior on a head (H=1) or tail (T=0) and the fate of C2 is dependent on C1. If C1 is a head, C2 will be a head with probability 0.7. If C1 is a tail, C2 will be a head with probability 0.5. C1 and C2 ar..
Nrmal distribution
The frequencies of each of the combinations were used to calculate the probabilities that you see below in relation to the outcomes of drinks and snacks.
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