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A coin was flipped 60 times and came up heads 38 times (a) at the time .10 level of significance is the coin based towards heads? show your decision rule and calculations (b) calculate a p value and interpet.
The fixed monthly cost of operating the production facility is $3000. How many units of part # 2206 have to be sold in a month to break-even?
Create the indicated confidence interval for population mean µ using a t- distribution.
Use PHStat to make a box-whisker plot. If PHSTAT has yet to be installed, calculate Xmin, Xmax, Q 1 , Q 3 and median using equation in Class Notes-Quartiles, Percentile & Dectiles.
A sample of 60 students from a large university is taken. The average age in the sample was 22 years with a standard deviation of 6 years.
Discuss the concept of 'extended family' with Asian and Latino ethnic minorities. Discuss the strengths and weaknesses regarding delivery of social and health services to these groups.
Different designs SRS from Normal data, Shape of the population distribution and sample distribution Margin of error doesn"t cover all errors How small a P is convincing?
Describe your answer to a person who has never had a course in statistics.
The mean area of several thousand apartments in a new development is advertised to be 1250 sq. ft. An engineer measured a random sample of apartments:
The Problem Solving Inventory (PSI) has a normal distribution with mean = 90 and standard deviation = 15. A researcher suspects that the mean for female students is higher than 90.
The KW water is provided to approximately 750,000 people, who are served through more than 362,000 accounts. All accounts are metered and billed monthly.
Explain the logic of the ordinary least Square (OLS) method? How are the least squares formulas for the slope and intercept derived?
would this prove that they are exceeding their goal, using α = 0.025?
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