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A jar of peanut butter contains 457 grams with a standard deviation of 10.7 grams. Assuming a normal distribution, find the probability that a jar contains less than 454 grams.
Carry out a hypothesis test to see if our belief can be supported. State the null hypothesis and the alternative hypothesis that we would use for this test.
For a standard normal curve, find the z-score that separates the bottom 90% from the top 10%.
The mean weight of trucks traveling on the the highway is unknown. A state highway inspector needs an estimated mean. He selects 49 trucks passing the weighing station and gets a mean of 15.8 tons
an advertising company has 12 men and 8 women. suppose the company needs to select a team of 5 members to work on a
What formula would I use? Can you break it down into baby steps so I can understand how you got the answer?
What can you say with 95% confidence about the percent of all American adults who think that humans developed from earlier species of animals.
Explain how the proposed survey addresses your problem statement. Determine if your survey questions are appropriate for researching your business problem, and explain why they are.
a set of 10 cards consists of 5 red cards and 5 black cards. the cards are shuffled thoroughly and i choose one at
seventy percent of houshold say the would feel secure if they had 50000 in saving. you randomly select 8 houshold and
Test at the 5% level of significance whether the true mean time it takes for luggage to reach the travelers is less than 17 minutes. Determine the null hypothesis.
It is estimated that 3% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 90% accurate.
analysis of variance- one way classification.a pharmaceutical company wants to determine whether there is any
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