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A random sample of 56 people measured accuracy w/ positive errors representing watches that are ahead of the correct time and negative rep. those behind the time. The 56 values have a mean on -94.7 seconds and a SD of 152.6 sec. Use a 0.01 sig. level to test claim pop of all watches has a mean = to 0.00
Answer is reject the claim that the pop mean = 0.00
The sample size n, the sample means, and the sample standard deviations for the two groups are given
I have computed an analysis of variance for three groups with 10 observations per group. Evaluate the degrees of freedom for the F test
Test of claim for the statement made for a given paired sample:
The sampling distribution of mean score is approximately Normal. It has mean. What is its standard deviation?
Country A and Country C spends about the same amount on average per person per year. Which has the greater spread?
What is the expected number of Republicans who will win office in the coming election?
Stating assumptions on which your arguments and conclusions are based, sum up the statistical evidence regarding effectiveness of this diet.
Suppose the horses in a large stable have a mean weight of 1464 lbs, and a standard deviation of 111. What is the probability that the mean weight of the sample horses would differ from the population mean by less than 11 lbs if 34 horses are samp..
Researchers are studying the absorption of two drugs into the bloodstream. Each drug is to be injected at three dosages. There are 24 people in the study, and they are randomly divided into six groups.
If standard deviation is 50 hours and α is equal to 0.01, what values for mean x will result in rejection of null hypothesis.
Test either there is any difference among the given variable also what does the Levene's Test shows. What variable is presented in this table.
Given 7 male individuals in a Physical Education course, the number of sit ups each individual can do in a one minute period was recorded:
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