A(n) ________ takes advantage of file transport methods, such as e-mail, to spread on its own.

Lacey has two strawberry yogurts and six banana yogurts in her refrigerator. She will choose one yogurt at random to take to work. Find the probability Lacey will choose a strawberry yogurt.  Express the probability as a fraction. (Use a / for fractions)  Express the probability as a decimal.  

In a study of 64 randomly selected people, it was found that 41% subscribe to at least one magazine.  a.  Construct and interpret (write your results in a sentence) a 90% confidence interval for the proportion of people that subscribe to at least one magazine.  Round final numbers to three decimal places. b.  Do the results support the claim that less than half of people subscribe to at least one magazine?  Explain why/why not.  

a.  If you were to create confidence intervals with the same data set, which would be wider: a 90% confidence interval or a 99% confidence interval?   b.  True or False?  A Type I error occurs when we incorrectly reject the null hypothesis.

A Domain.ME survey* of 1000 adults showed that 40% of the respondents searched for themselves online.  Use a 0.01 significance level to test the claim that fewer than 45% of adults search for themselves online. a.  Write the null and alternative hypotheses.  Use correct notation. b.  Calculate the test statistic z, using the following formula.  Round to two decimal places. c.  Use the normal distribution table to find the P-value. d.  Based on your result, should you reject the null hypothesis or fail to reject the null hypothesis?  Support your answer. e.  Choose the correct phrase from the underlined portion.  There is/is not sufficient evidence to support the claim that fewer than 45% of adults search for themselves online. *Actual data as shown in Section 8.2 in your ebook.

The sample range is an biased estimator.  This means that it contually over- or underestimates the population range.   a. Give another example of a biased estimator.  b. Give an example of a unbiased estimator. 

Assume that volumes of bottles of root beer are normally distributed with a mean of 20 fluid ounces and a standard deviation of 0.3 fluid ounces. a.   Find the probability that a bottle of root beer has more than 21 fluid ounces.  Do not round your answer. b.  Find the probability that a group of 16 bottles of root beer has a mean volume that is less than 19.8 fluid ounces.  Do not round your answer. c.  In part b, we can assume that the mean volumes have a normal distribution even though our sample size was less than 30.  According to the Central Limit Theorem, why can we make this assumption? d.  The root beer company plans to discount the price of root beer bottles with the lowest 2% of volumes.  Find the volume of a bottle of root beer that separates the lowest 2% from the rest.  Do not round your answer.

An example of an endocrine gland is the:

Where is the cell body of the odontoblast located in a mature, healthy erupted tooth?

Select ALL that apply: Saliva’s function(s) include which of the following? (Multiple answers)