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A tube of Listerine Tartar Control tooth paste contains 4.2 ounces. As people use the tooth paste, the amount remaining in any tube is random. Assume the amount of toothpaste left in the tube follows a uniform distribution. From this information, we can determine the following information about the amount remaining in the toothpaste tube without invading anyone's privacy.
a. How much toothpaste would you expect to be remaining in the tube?
b. What is the standard deviation of the amount remaining in the tube?
c. What is the likelihood there is less than 3.0 ounce remaining the tube?
d. What is the probability there is more than 1.5 ounces remaining in the tube?
Assume that female students' heights are normally distributed with a mean given by µ = 67.2 in. and a standard deviation given by σ = 3.6 in.
The proportion of parts in an inventory that are outdated and no longer useful is thought to be 0.10. To check this, a random sample of n = 100 parts is selected and 14 are found to be outdated. Based upon this information, what is the probability..
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Choose an American driver at random and let the random variable X be the number of speeding tickets the driver has received in the last two years. The discrete probability distribution of X is shown.
A certain airplane has two independent alternators to provide electrical power.
For each of following data sets, select the most suitable response from choices below the table. A strong negative linear relation exists.
What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?
What is the rejection point at α = .10 and indicate if you would accept or reject H o ?
Use the table to determine whether the correlations are significant and how you would interpret the results. The correlation between speed and strength for 20 women is .567. Test these results at the .01 level using a one-tailed test.
A sample of 81 account balances of a credit company showed an average balance of $1,200 with a sample standard deviation of $126. You want to determine if the mean of all account balances is significantly different from $1,250. Use a .05 level of ..
What statistical procedure was used to analyze data in study B?
With this important detail, are there any significant differences with LSD?
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