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The following case applies to questions 1-3:
Clients can choose between three diets at a weight-loss treatment center. An experiment was performed to determine if there is a difference between the diets. Fifteen patients were randomly selected and divided evenly into three groups of five for each diet. After 30 days the weight change (in pounds) for each client was recorded as shown below.
Diet A: 4, 4, 5, 5, 7
Diet B: 5, 6, 6, 7, 7
Diet C: 7 ,8, 8, 9, 9
What is the alternative hypothesis?
What is the critical value at the 0.05 level of significance?
What is the test statistic and does the experiment conclude that there is a difference in mean weight loss among the three diets at the 0.05 level of significance?
If the cholesterol levels of adults are normally distributed with mean 230 and standard deviation 25, what is the probability that a randomly sampled adult.
Cards. You draw a card at random from a standard deck of 52 cards. Find each of the following conditional probabilities.
How do you as a project manager respond to a clients complaint received from a resident about poor and unsafe work practices that could cause slips
A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.
The same students increased their scores on a retest to: 85,79,75,95, and 84. At the 0.05 significance level, is the intervention plan helpful in increasing grades?
Why are samples studied when we want to know about populations? Why are random samples used instead of just any sample? How would you determine an appropriate sample size?
Create a payoff table in excel and use it to find the following. Need to see all workings and what is the best payoff decision and what to choose.
Consider t = -2.50 and t = -2.54. Which t ratio has the smaller p value? Provide a rationale for your answer. What does this results mean?
a bag of 31 tulip bulbs contains 12 red tulip bulbs 12 yellow tulip bulbs and 7 purple tulip bulbs.a what is the
The mean for the women's right hands pans is about 20 cm, with a standard deviation of about 1.8 cm. Using the stem and-leaf plot in Figure.
You have money in an account at 7% interest, compounded monthly. To the nearest year, how long will it take for your money to triple?
Quantitative Methods Assessed Coursework. Find the correlation coefficients for business generated and psychometric test score, business generated and experience, and business generated and qualifications
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