The 2 -test
... – Xi = Random variable representing the value of the ith observation in a sample of size n, (i=1, 2, …, n) – Assume that all observations Xi are independent random variables – The population mean = E[Xi]= – The population standard deviation=(Var[Xi])0.5= X1 X 2 X n n – Mean and Std. Dev. o ...
... – Xi = Random variable representing the value of the ith observation in a sample of size n, (i=1, 2, …, n) – Assume that all observations Xi are independent random variables – The population mean = E[Xi]= – The population standard deviation=(Var[Xi])0.5= X1 X 2 X n n – Mean and Std. Dev. o ...
Sampling and estimation
... The first human genome ever sequenced was a sample of 1 element taken from a population of 6 billion elements. 1000 human genomes: project announced in 2008. A sample of 1000 genomes in a population of 6 billion human genomes. ...
... The first human genome ever sequenced was a sample of 1 element taken from a population of 6 billion elements. 1000 human genomes: project announced in 2008. A sample of 1000 genomes in a population of 6 billion human genomes. ...
Descriptive statistics for measurements of a single variable
... mean, we’d like to give a range of diameters within which the true mean lies with a probability of 95%. b. The normal distribution The most common assumption made in statistical treatments of data is that the probability of a particular value x deviating from the population mean is inversely propo ...
... mean, we’d like to give a range of diameters within which the true mean lies with a probability of 95%. b. The normal distribution The most common assumption made in statistical treatments of data is that the probability of a particular value x deviating from the population mean is inversely propo ...
Notes 8
... If all variances in strata and costs are equal, proportional allocation is the same as optimal allocation. If we know the variances within each stratum and they differ, optimal allocation gives a smaller variance than proportional allocation. But optimal allocation is a more complicated scheme; oft ...
... If all variances in strata and costs are equal, proportional allocation is the same as optimal allocation. If we know the variances within each stratum and they differ, optimal allocation gives a smaller variance than proportional allocation. But optimal allocation is a more complicated scheme; oft ...
Using Sample Data to Draw Conclusions about
... (d) We have just carried out what is known as a one-sided hypothesis test. A two-sided hypothesis test is concerned about alternatives on both sides of the null hypothesis (HA : µ 6= 5). The p-value for a two-sided test is just twice the p-value of a one-sided test. Write the p-value for the two-sid ...
... (d) We have just carried out what is known as a one-sided hypothesis test. A two-sided hypothesis test is concerned about alternatives on both sides of the null hypothesis (HA : µ 6= 5). The p-value for a two-sided test is just twice the p-value of a one-sided test. Write the p-value for the two-sid ...
Lab 9, 3-18-09 - Hanover College
... 8. According to the Registrar, 65% of HC students are from Indiana. Amazingly, we also find that 65% of the students in the sample are from Indiana. Use binompdf on your calculator to find the probability of getting the exact right sample proportion in this case: ____________ Lucky sample! Notice th ...
... 8. According to the Registrar, 65% of HC students are from Indiana. Amazingly, we also find that 65% of the students in the sample are from Indiana. Use binompdf on your calculator to find the probability of getting the exact right sample proportion in this case: ____________ Lucky sample! Notice th ...
