In a sample of 1,047 randomly selected adults, 38% said they did not intend to vote in the next election. How many adults in the survey said they did not intend to vote? [one]   In one of Mendel’s experiments with green and yellow peas, 123 out of 515 peas were yellow. What percentage of the peas were yellow?  Round to the nearest tenth of a percent. [two]%   Last year an airline reported that a specific flight was delayed 47 times. This year they reported a 13% reduction in delays for the same flight.  How many times was the flight late this year? [three]

Does the table below represent a valid probability distribution?

The weights (in pounds) of 30 newborn babies are listed below. Find 

Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, . The probabilities corresponding to the 15 possible values of are summarized in the given table. Answer the question using the table.                       Probabilities of Girls Find the probability of exactly 5 girls. [five] Find the probability of 9 or more girls. [9ormore]

For the following binomial distribution, give the minimum usual value and the maximum usual value.  Round your answers to two decimal places.                   n = 93, p = 0.24 minimum usual value [min] maximum usual value [max]

A company considers the production process to be out of control when defects exceed 3%. In a random sample of 85 items, the defect rate is 5.9% but an employee claims that this is only a sample fluctuation and production is not really out of control. The company claims that this is evidence the production process is out of control and the defect rate is greater than 3%. Test the company’s claim at the .01 level of significance. The alternative hypothesis is p [alt] .03 (type , or =/) The p-value is [pvalue] (round to 4 decimal places) The test statistic is z=[test] (round to 2 decimal places) What is your conclusion about the company’s claim? [conclusion]  s = support the company’s claim r = reject the company’s claim f = fail to reject the company’s claim n = not enough evidence to support the company’s claim

The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.013 inches. What proportion of bolts will have a diameter greater than 0.32 inches?  Note:  give your answer as a proportion – a decimal rounded to 4 decimal places.  

In a game, you have a probability of winning $85 and a probability of losing $4.  What is your expected value?  Round your answer to two decimal places.

In one town, 44% of all voters are Democrats.  If two voters are randomly selected for a survey, find the probability they are both Democrats.  Round to the nearest thousandth.

Two types of flares are tested and their burning times (in minutes) are recorded.  The summary statistics are given below: Brand X Brand Y n=35 n=40 sample mean=19.4 min sample mean=15.1 s=1.4 min s=.8 min Use a .05 significance level to test the claim that the two samples are from populations with the same mean.  Assume that the two samples are independent simple random samples selected from normally distributed populations.  Do not assume the population standard deviations are equal.   The alternative hypothesis is U1 [alt] U2 (type , or =/) The test statistic is:  t=[test] (round to 3 decimal places) The p-value is:  [pvalue] The conclusion about the original claim is:  [claim] s = support the claim r = reject the claim f = fail to reject the claim n = not enough evidence to support the claim