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Fancorp (a consulting firm) claims that "less than half of franchises are owned by husband-wife team." A simple random sample of 37 franchise owners shows that 12 are owned by husband-wife team. Can you confirm Fancorp's claim at α = 0.05? (Use p-value approach)
[Note: the hypothesis one wants to reject is usually the null hypothesis and the hypothesis one wants to conclude is usually the alternative hypothesis.]
During a marketing visit a positive indication was obtained. in the past this has resulted in improving the chance of receiving the contract to 0.6. Does this change your decision in part (a)?
A student conducted a study on the height and weight of adult males. She collected data from 40 adult males and found that average height is 68.34 inches with a standard deviation of 14.02 inches
A farmer in South Carolina must decide which crop to plant next year on his land: corn, peanuts, or soybeans. The return from each crop will be determined by whether a new trade bill with Russia passes the Senate.
This second sample had an average response of 132 with a sample variance of 16. What is the pooled standard deviation for this problem?
the following data were collected in a clinical trial to compare a new drug to a placebo for its effectiveness in
Construct an appropriate chart/graph that displays the relevant information for these two variables - Write the null and alternative hypotheses used to test the question above (e.g., whether participation in the course affects writing scores).
What is the probability that she will have at least 3 minutes to obtain her cup of tea?
If the store orders three copies of the magazine, what is the mean value of the profit? (Profit = Revenue - Cost). If the store orders four copies of the magazine, is it better to order four than three copies of the magazine. Explain.
Sprinkler Systems. A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135 degrees F.
The following two questions appear on an employee survey questionnaire. Each answer is chosen from the five point scale 1 (never), 2, 3, 4, 5 (always).
Create a 2 X 2 from the information provided and calculate the appropriate statistic to determine the odds of contracting uterine cancer when using estrogen
an economist wants to know whether these two variables the help wanted index and the unemployment rate among insured
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