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Question: A new low-calorie pizza introduced by Pizza Hut has an average of 150 calories per slice. If this number is based on a random sample of 100 slices, and the population standard deviation is 30 calories, give a 90% confidence interval for the population mean.
when calculating a sample size for a hypothesis test with the altenative hypothesis being ha micro1?micro2a use table
one sample is selected to represent scores in treatment 1 and a second sample is used to represent scores in treatment
discuss the various sampling methods we might use in determining which items to include in a
An experiment was conducted to determine the effect of germination time (in days) and temperature (degrees C) on the free alpha amino nitrogen (FAN) content of rice malt. The values shown in the following are the treatment means of FAN with n = 2 ..
a distribution with a mean of micro 38 and a standard deviation of s 20 is being transformed into a standardized
Assuming a normal distribution, What is the z-score associated with the second quartile? If we wish to have 95% confidence interval, what would be the value of the confidence coefficient?
which of the following are assumptions of the analysis of variance f test for comparing population means of several
a machine consists of two components whose lifetimes have the joint density function fxy 150 for xgt0 ygt0 xylt10. the
Assuming normality of distribution of yield rates, if senior management has set a goal of 9% for yield, what is the lower capability index? In what proportion of the time will the goal be met?
The standard deviation is one of the most important concepts in the area of statistics. In your own words, define standard deviation. Give an example of how you have used the concept of standard deviation in your life
If a population has a mean of 80 and standard deviation of 20, for the distribution of sample means based on n = 16, what is the expected value (of the mean) and the standard error?
From a random sample we know that the average duration of unemployment in a low developed region A is 147 days (with standard deviation sA = 32 days and nA = 230 unemployed).
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