An average one unit different from the low cost tapes

Reference no: EM131093730

We are planning an experiment on the quality of video tape and have purchased 24 tapes, four tapes from each of six types. The six types of tape were 1) brand A high cost, 2) brand A low cost, 3) brand B high cost, 4) brand B low cost, 5) brand C high cost, 6) brand D high cost. Each tape will be recorded with a series of standard test patterns, replayed 10 times, and then replayed an eleventh time into a device that measures the distortion on the tape. The distortion measure is the response, and the tapes will be recorded and replayed in random order. Previous similar tests had an error variance of about .25.

a) What is the power when testing at the .01 level if the high cost tapes have an average one unit different from the low cost tapes?

b) How large should the sample size have been to have a 95% brand A versus brand B confidence interval of no wider than 2?

Reference no: EM131093730

Questions Cloud

Difficult for monetary policy : What important factor makes it more difficult for monetary policy makers to time policy changes correctly?

How they influence the current u.s. criminal justice system : Respond and offer different social and political influences than your colleagues. Or, provide an alternative perspective on how they influence the current U.S. criminal justice system.

Diets on the blood concentration of estradiol : We are interested in the effects of soy additives to diets on the blood concentration of estradiol in premenopausal women. We have historical data on six subjects, each of whose estradiol concentration was measured at the same stage of the menstru..

What is the long-run total cost : Continue to assume that capital and labor can each be hired at $1 per unit. Show that in the long run, if the firm produces 10 units of output, it will employ 10 units of capital and 10 units of labor. What is the long-run total cost to produce 10..

An average one unit different from the low cost tapes : We are planning an experiment on the quality of video tape and have purchased 24 tapes, four tapes from each of six types. The six types of tape were 1) brand A high cost, 2) brand A low cost, 3) brand B high cost, 4) brand B low cost, 5) brand C ..

What values of x y and z should be chosen to minimize the : A cardboard box without lid must have volume 108m3. Let x, y, and z denote the box's length, width, and height, respectively. What values of x, y, and z should be chosen to minimize the amount of cardboard used?

Rejecting the null hypothesis when the null hypothesis : I conduct an experiment doing fixed-level testing with ε = .05; I know that for a given set of alternatives my power will be .85. True or False ?

Increases and the demand for the other goes : What do we call goods that are replacements of one another especially when a price of one increases and the demand for the other goes up?

The probability of rejecting the null hypothesis : What is the probability of rejecting the null hypothesis when there are four groups, the sum of the squared treatment effects is 6, the error variance is 3, the group sample sizes are 4, and ε is .01?

User Account

All Pages