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Question: Medicine and Clinical Studies Young children usually get 5-10 colds each year. To ease cold symptoms, for example, a runny nose or sore throat, some parents give their children over-the-counter cough and cold medicines. However, many of these medicines are not effective and can cause serious side effects in young children. A random sample of parents of young children was obtained and asked whether they give their children cough or cold medicine. The data are given in the following table.
a. Is there any evidence to suggest that the true population proportion of males who give their children cough medicine is different from the true proportion of females? Use a = 0.05.
b. Find the p value associated with this hypothesis test.
c. Find a 95% confidence interval for the difference in the proportion of males who give their children cold medicine and the proportion of females who give their children cold medicine. Does this confidence interval support your conclusion in part (a)? Why or why not?
d. What must be true of the respondents in order for the hypothesis test in part (a) to be valid?
He has only $66 to spend and the office has room for no more than 60 square feet of cabinets. (Find the Objective Function and the Constraints; Let Cabinet A be "x", and Cabinet B be "y") How many of each can be bought to maximize storage capacity..
The 'interaction effect' was also important. By using the means in the table above write a statement explaining how the anti-anxiety drug appears to affect anxiety. Are the outcomes consistent with the hypothesis proposed by the researchers?
Security B has an expected return of 12 percent, a standard deviation of returns of 10 percent, a correlation with the market of 0.7 and a beta coefficient of 1.0.
Thousands of students apply for admission to graduate schools in economics each year with the intention of obtaining a PhD. The mean and standard deviation of these 129 productivity scores were used to compute a z score for each economics program...
1. automobiles arrive at the drive-thru window at the downtown fort mcmurray post office at the rate of 4 every 10
PERSONNEL SELECTION Applicants for temporary office work at Carter Temporary Help Agency who have successfully completed a typing test are then placed.
State thesis at beginning, middle, or end, generally. Here are few suggestions for what can make for a strong introduction:
use table to find each critical values1. z for the 94 confidence interval?2. z for the 78 confidence interval?3. t and
Perform the five-step hypothesis test on the data. - LORA - this is the portion I am responsible for based on using the nonparametric hypothesis testing.
Can a pretest on mathematics skills predict success in a statistics course? The 82 students in an introductory statistics class took a pretest.
a b c and d are taking goal shots in soccer. they take shots in the order a b c d then repeat. by going in this order
Explain the rationale behind time series designs.- Describe the simple interrupted time series design.- Why is contemporary history a threat to internal validity in a simple interrupted time series design?
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