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The weights of ripe watermelons grown at Mr. Smith's farm are normally distributed with a standard deviation of 2.8 lb. Find the mean weight of Mr. Smith's ripe watermelon is only 6% weigh more than 15lb. Once the mean is known, find the probability that a watermelon from his farm weighs less than 13 lb. Please help me figure out these answers, most importantly how to do the problems.
Assuming that these are a random sample of all publicly traded companies, construct a 95% confidence interval for the overall noncompliance proportion.
a group of college students believes the average grades in psychology courses are different than the average grades in
The probability the champion is UCLA is 20%. What do these results say about testing with group data? Include in your answer the URLs of the sites where you found the necessary data.
jane researcher is studying the percentage of ethanol in dwi arrestees blood. she tests 16 subjects and finds a mean of
For the most recent year available the mean annual cost to attend a private university in the US was $26,889. Assume the distribution of annual costs follows a normal probability distribution and the standard deviation is $4,500. 95% of all studen..
Explain the difference between a population and a sample. In which of these is it important to distinguish between the two in order to use the correct formula?
Let Z be the random variable giving the number of times the second biased coin (coin #2) comes up heads. What is the probability mass function of Z? What is the mean and variance of Z?
What is the probability that none of the three parents condones spanking as a regular form of punishment for their children? Give the mean and standard deviation of x. Interpret the results.
what is the probablity that a person selected at random from this hwas data set is horter than 65 or taller than
You have the lab analyze the number of calories in each of the hot dog samples with the results below. What conclusions can you draw concerning the calorie content of the two types of hot dogs?
given that sxx 265 syy 172 and sxy 184 what is the value of the linear correlation
Determine a 95% confidence interval for true mean cost to repair this type of car.
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