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answer these three questions and show all your work and use the z-table that is in the back of all statistic book1
scores on the sat verbal test are nd with a mean of 505 and std dev of 110a what percent of scores fall between 520 and
consider rolling two fair dice let a be the event that the sum of the two dice is 7 and b be the event that the first
assume the sat mathematics level 2 test scores are normally distributed with a mean of 500 and a standard deviation of
in a study designed to test the effectiveness of garlic for lowering cholesterol 49 adults were treated with garlic
1 rabbits like to eat the cucumbers in mimis garden there are 10 cucumbers in her garden which will be ready to harvest
in a pulse rate research a simple random sample of 81 men results in a mean of 75 beats per minute and a standard
two classes of statistics are being taught by two different methods there is a debate to determine if the two teaching
given this result from a one-way anovanbspf340 102 p gt 05how many groups were comparedwhat was the sample sizewhat
for each of the following scenarios conduct the complete hypothesis testing process as appropriate given that scenarioa
a senator wishes to estimate the proportion of the united states voters who favor abolishing the electoral college how
a survey showed that 80 of the 1600 adult respondents believe in global warming construct a 90 confidence interval
suppose you know that male height for adults is normally distributed with a mean of 70 inches and a std dev of 3
the calcium ca content of a powdered mineral substance was analyzed 10 times with the following percent compositions
a november 2008 gallup poll asked a sample of americans 18 years or older whether they would like to lose weight stay
a machine has three independent components the compoents are grouped together into two groups the first group contains
the heights in inches for a sample of male adults are62 82 79 76 73 70 67 64 61 80 79 75 72 69 71 71 71 74 74 74 draw
1 in a study designed to test the effectiveness of garlic for lowering cholesterol 49 adults were treated with garlic
a school is studying their students test scores by grade explain how the characteristic grade could be considered
i problemtomato plants were grown in a greenhouse under treatments consisting of combinations of soil type factor a and
suppose you believe that two variables x and y are related but you have no idea which way the causality goesdoes x
an economist found that a random sample of 42 high school teachers had an average annual salary of 56490 a previous
in a random sample of 200 high school students in a city 120 said that they are very concerned about the cost of
conduct the single factor anova test table not neededlionel is a waiter at a local diner he notices that he seems to
suppose you want to predict reading speed using among other variables the device the person is reading from this device