MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Your medical research team is investigating the
mean
cost of a 30-day supply of a certain heart medication. A pharmaceutical company thinks that the
mean
cost is
more than $95.
You want to support this claim. How would you write the null and alternative hypotheses?Expert Solution
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- I need help with this questionarrow_forwardWhat is the difference between practical significance and statistical significance? Give an example of something that might be statistically significant.. but not practically significant.arrow_forwardState the null and alternative hypothesis if I claim that the mean age of women is 5 or more than the mean age of men.arrow_forward
- LSU's Ag. Center wants to determine whether the mean yield for sugarcane is different this year compared to the historical avg of 8,700 lbs of sugar per acre. Thus, the null and alternative hypotheses are Ho: mu = 8,700 Ha: mu is not = to 8,700 You set out to conduct a hypothesis test at the 95% level. Mean yields are distributed Normally. You take a sample of 100 different acres. From this sample, you calculate a mean yield of 8,853 and a std deviation of 1,150. What are the bounds for the acceptance region for this hypothesis test? Group of answer choices -1.64 to 1.64 -2.58 to 2.58 -1.33 to 1.33 -1.96 and 1.96arrow_forwardYou conduct a statistical study in order to test whether a new training program has led to any change in performance or not. The p-value of the the test turns out to be 0.10. This implies that for any significance level below 10% you would not reject the null hypothesis of no change. True or false?arrow_forwardA concerned consumer believes that they are being cheated in the weight of potato chips per bag. The company claims that every small bag weighs 1 ounce. You weigh 50 different bags of chips and find the average to be .97 ounces. Match the following terms to their meaning in context of this problem. The consumer finds a test result that is NOT statistically significant What is their conclusion?arrow_forward
- What is H0? And why do we evaluate it instead of the scientific hypothesis?arrow_forwardHelp me pleasearrow_forwardLSU's Ag. Center wants to determine whether the mean yield for sugarcane is different this year compared to the historical avg of 8,700 lbs of sugar per acre. Thus, the null and alternative hypotheses are Ho: mu = 8,700 Ha: mu is not = to 8,700 You set out to conduct a hypothesis test at the 95% level. Mean yields are distributed Normally. You take a sample of 100 different acres. From this sample, you calculate a mean yield of 8,853 and a std deviation of 1,150. What is the test statistic for this hypothesis test? (To two decimal places. ex: 1.23)arrow_forward
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