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1. A package of frozen vegetables has a label that says "contents 32 oz." The company that produces these packages knows that the weights are normally distributed with mean 32 oz. and has a standard deviation of 2 oz. If a package is chosen at random, what is the probability it will weigh (Hint: Draw a picture)
a. More than 36 oz.?
b. Less than 32 oz.?
c. Between 30 and 35 oz.?
Discuss the properties of a normal distribution. Why are there infinite possible normal distributions? Why should one assume that sample data represents a population distribution?
The researcher expects a 12-point treatment effect and plans to use a two-tailed hypothesis test with a = 0.05.
By using.02 level of significance, carry out a 5-step hypothesis testing procedure to find out if new processes considerably reduced the wait time.
Dating In Chances- Risks and Odds in Everyday Life, James Burke claims that about 70 percent of all single men would welcome a woman taking the initiative in asking for a date. A random sample of 20 single men was asked if they would welcome the woma..
An economist found that a random sample of 42 high school teachers had an average annual salary of $56,490. A previous study showed that the population standard deviation is $4150. Find the 99% confidence interval for µ, the average annual salary ..
The random variable X has which of the following probability distributions and What is the probability that no student wins
Calculate the MEAN and STANDARD DEVIATION for the distribution below:
Conduct a mini-meta-analysis. There is really no such thing as a mini-meta-analysis, but you don't have time to conduct a full meta-analysis.
Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores
Draw a scatter diagram and consider the correlation for the provided data. Do larger universities tend to have more property crime.
Assume a linear relationship, use the least square method to find the regression coefficients bo and b1 and Predict the mean kilowatt usage when the average temperature is 50 degrees Fahrenheit.
SmartPeople is an organization that only admits people with IQ's in the top 98 percentile. What IQ score would a person need to be a member of SmartPeople?
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