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For a normal distribution curve with a mean of 17 and a standard deviation of 5, which range of the variable defines an area under the curve corresponding to a probability of approximately 68%?
Is this sample sufficient to conclude that the eye spots have a significant influence on the birds behavior? Use a two tail test with alpha =.05. Compute the estimated Cohen's d to measure the size of the treatment.
a random variable has the following probability distribution x px 0 0.10 1 0.20 2 0.35 3 0.26 4 0.09 a compute the
a computer retail store has 15 personal computers in stock. a buyer wants to purchase 4 of them. unknown to either the
write the null and alturnative hypothesis identify which is the claim.the results of a recent study show that the
Use a 0.01 level of significance to test for the evidence of improvement in the life expectancy of the batteries. Use the critical value criterion in your decision making. What is the p-value of the test? Draw your conclusion using the p-value crit..
If all samples of size 64 are drawn, mean of sample according to Central Limit Theorem is 100.
Which study has the higher probability of a Type II error, the 60-subject study or the 100 -subject study? Which study has higher power?
1. distinguish between classification and tabulation of data. what are the types of classification of data?2. calculate
alumni donations are an important source of revenue for colleges and universities. if administrators could determine
the listing price of a random sample of two-year-old honda civics was obtained for four cities in the united states.
Find the critical value to test the claim that all ages have purchase rates proportional to their driving rates.
an engine oil supposed to have a mean viscosity of micro 85.0. a sample of n25 viscosity measurements resulted in a
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