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A company labeled its can soup with 800mg sodium per serving. A consumers' group is concerned that the soup contains less sodium than what is listed on the can. A sample of 49 cans had a mean sodium content of 840 mg per serving and a sample standard deviation of 35 mg. Do the cans contain less than the 800 mg of sodium per serving listed on the label? Assume the population of the amount of sodium per serving is following a normal distribution.
1) What statistical procedure can be used? Explain why.
2) Use α = 0.05, and bothrejection region and p-value to make a decision.
7 cards are drawn from a standard deck without replacement. What is the probability that at least one of the cards drawn is an ace? Express your answer as a fraction or a decimal number rounded to four decimal places.
Explain the difference between mutually exclusive and independent events.
The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years.
1. questions based on a distribution of scores with and the standard deviation 6.38. draw a small picture to help
Which of the given properties doesn't apply to theoretical normal distribution?
as the population ages there is increasing concern about the accident-related injuries to the elderly. the article age
the average flight from point a to point b takes 100 minutes with a standard deviation of 10 minutes.a. what is the
In a certain city, the daily consumption of electric power in millions of kilowatt-hours can be treated as a random variable having a gamma distribution with α = 3 and β = 2.
A survey is conducted from a population of people of whom 40% have a college degree. The following sample data were recorded for a question asked.
Calculate the value based on this information. A new screening test for Lyme disease is developed for use in the general population. The sensitivity (ability to identify infected persons) is 60% and specificity (ability to identify non- infected p..
Assume that respondents had been asked for party affiliation in a poll. THe responses were coded as 0 (for democra), 1 (for republican), 2 (for independent), or 3 (for any other response).
Consider the instrumentation amplifier of Fig. 2.20(b) with a common-mode input voltage of +3 V (dc) and a differential input signal of 100-mV peak sine wave. Let 2R1 = 2 kΩ, R2 = 50 k Ω, R3 = R4 = 10 kΩ. Find the voltage at every node in the circ..
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