For a hypothesis test of a difference of means with n135

For a hypothesis test of a difference of means with n1=35 and n2=45, what is the value for the degrees of freedom, df?

In a survey 600 mothers and fathers were asked about the : in a survey 600 mothers and fathers were asked about the importance of sports for boys and girls. of the parents

State two ways in which the standard normal distribution : 1. state two ways in which the standard normal distribution and the students t-distribution are alike.2. state two ways

Construct a 98 confidence interval for the difference of : a pharmaceutical company wants to test the effectiveness of their new chronic pain drug. they give one group of 35

For a two tailed hypothesis test of a difference of means : for a two tailed hypothesis test of a difference of means with icircplusmn.05 and df30 we have the following critical

For a hypothesis test of a difference of means with n135 : for a hypothesis test of a difference of means with n135 and n245 what is the value for the degrees of freedom

We estimate the mean price of a cell phone in the bay area : we estimate the mean price of a cell phone in the bay area using a 95 level of confidence. from a random sample of 25

A sample of pieces is taken and the diameters are 101 097 : a machine is producing metal pieces that are cylindrical in shape. a sample of pieces is taken and the diameters are

A ucla researcher claims that the life span of mice can be : a ucla researcher claims that the life span of mice can be extended by as much as 25 when the calories in their food

Determine the mean and standard deviation of the variable x : determine the mean and standard deviation of the variable x in the binomial distribution where n 4 and ?