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The loaves of rye bread distributed to local stores by a certain bakery have an average length of 30 centimeters and a standard deviation of 2 centimeters. Assuming that the lengths are normally distributed, what percentage of the loaves are
a) Longer than 31.7 centimeters?
b) Between 29.3 and 33.5 centimeters in length?
c) Shorter than 25.5 centimeters?
Researchers wanted to determine if there is a difference in the mean credit card debt owed by males versus females. Using α = 0.10, is there a difference. (Show all six steps of hypothesis testing.)
Thermometers are normally distributed with a mean of O Celsius and a standard deviation of 1. OO Celsius, Find the probability that a randomly selected thermometer reads between - 2.23 and - 1.25 and draw a sketch of the region. The probability is..
You're designing a survey to assess employee satisfaction. Provide a question that will produce: Develop five demographic questions to measure gender, age, years of experience, level of education, and ethnicity.
Julia's cost for the soft drinks are 55 cents, and she sells them for two dollars. She can expect to sell just as many soft drinks as all food items combined.
What is the probability that sara will die in her 60th year? using this probability and the $50,000 death benefits, what is the expected loss?
A cereal manufacturer seeks to test their newest product against a competitor's. A group of 100 children was asked to evaluate each brand, and then to express a preference. To guard against bias, neither the children, nor the technicians serving t..
If the z score is less than 0, what can be said of the corresponding raw score?
Explain the distribution using the following characteristics. Determine the shape of the distribution. what score best identifies the center (average) for the distribution.
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A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are supposed to contain 300 milliliters (ml). In fact, the contents vary according to a normal distribution with a mean of 298 ml and a standard deviation of 3 m..
Draw a scatter diagram of the following bivariate data.
Critically the difference between Paramaeter and Statistics and Critically discuss the concept of operationalize? What are focus groups
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