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Suppose a sample of 10 observations is taken from a population with a normal distribution. The sample mean is calculated to be xmean=6 with a sample standard deviation of s=1.5. What is the upper tail (right most) critical value for a two sided 95% confidence interval?
Use the t-distribution table to find the critical values for the indicated alternative hypothesis, level of significance, a and sample size n1 and n2. Assume that the sample are independent, normal and random. Ha: u1
suppose someone gives you 9 to 2 odds that you cannot roll two even numbers with the roll of two fair dice. this means
a new phone answering system is capable of handling 6 calls every 10 minutes. prior to installing the new system
variables for which you would utilize a repeated measures ANOVA in analysis. Describe the variables and their scale of measurement. Identify whether each factor is fixed or repeating.
a -0.947 correlation coefficient has been found between two variables after examining 43 pairs of observations. what
A standard deck of playing cards contains 52 cards divided equally into four suits: Spades, Hearts, Diamonds, and Clubs. Each suit contains thirteen cards: 2, 3, 4, 5, 6, 7, 8, 9, 10, J(ack), Q(ueen), K(ing), A(ce).
an airline claims that 65 of its flights depart on time. a sample of 100 flights was examined and it was determined
give and describe an example of an ordinal measurement
Sam Hill, Director of Media Research in Christchurch,
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
Suppose we measured all the heights in centimeters, instead. There are 2.54 cm/inch? Question: What will happen to the covariance?
In a batch of 8,000 clock radios 9% are defective. A sample of 15 clock radios is randomly selected without replacement from the 8,000 and tested.
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