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A pharmaceutical company wants o test a new cholesterol drug. The average cholesterol of the target population is 200 mg and they have a standard deviation of 25 mg. The company wished to test a sample of people who fall between 1.5 and 3.0 z scores above the mean. Into what range must a candidate's cholesterol level be in order for the candidate to be included in the study? Please show work.
Given that Vacationer will travel less than 500 miles, Find out the probability that he/she will drive or take the Bus/Train?
on a certain legislative committee 38 of the members are republicans. if 23 of the members are men and 35 of the men
The mean number of nonconforming coil springs in a batch is 5. Assume that the number of nonconforming springs in a batch, denoted as X, is a binomial random variable. What are n and p?
in a study to determine whether counseling could help people lose weight a random sample of 24 people experienced a
In an effort to control costs associated inventory management, a study was conducted on the relationship between sales (X, in billions of US dollars) and inventory levels (Y, in billions of US dollars), with a random sample of size 20. You are ass..
question 1 the manager of a famous food outlet conducted a survey and took a sample of 13 customersrsquo spending at
Fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0. Conduct a hypothesis test. The null and alternative hypotheses are:
What is the probability that the sample mean will be between M = 510 and M = 520? In symbols, what is p (510
Can and how would you apply basic probability concepts to facilitate business decision making? Critically discuss the difference between discrete and continuous probability distributions?
question 1 find the mean and standard deviation of the number of cars that have more than 1 passenger among the 500
Mimi is interested in testing the claim that more than 75% of the adults believe in global warming. She conducted a survey on a random sample of 100 adults. Identify the null hypothesis and the alternative hypothesis. Determine the test statistic...
a bag contains 6 red balls 12 blue balls 7 yellow balls and 4 green balls. gary reaches in and pulls out one ball. if
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