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Introduction to Hypothesis Testing
State the claim mathematically. Then write the null and alternative hypothesis. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.
a. A research hospital claims that more than 3.7% of the population suffers from high blood pressure. Use p, the represent the population proportion.
Answer: Claim:
H0 :
Ha :
Test :
b. The highest acceptable level of pesticide found in quail has been limited to 0.35 parts per million (ppm). A hypothesis test is perform to test if the level of the pesticide is higher.
Hanna Properties specializes in custom-home resales in the Equestrian Estates, an exclusive subdivision in Phoenix, Arizona. A random sample of nine custom homes currently listed for sale provided the following information on size and price.
Shown below is computer ouput for a regression analysis relating Y (demand in units) and X (unit price).
What is a point estimate of the P/E ratio for the population of stocks listed on the New York Stock Exchange? Develop a 95% confidence interval.
Find a 90% confidence interval for the population average µ of the percentage of hospitals providing at least some charity care.
To determine the efficiency of the current ticket operation, Mike wishes to examine several queue operating characteristics.
Calculate the correlation and the regression equation and plot the data in the space provided.
High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours
What is the purpose of statistical estimation? What statistics do you find most useful in regression analysis? Why?
Derive the standard error of proportion, the margin error and the 95% confidence interval for the proportion indicating preference to flirting.
Consider a machine that fills soda bottles. The process has a mean of 15.9 ounces and a standard deviation of 0.06 ounces. The specification limits are set between 15.8 and 16.2 ounces. a) Compute and interpret the machine's Cp
What are the assumptions of regression analysis and how do you evaluate them?
Based on the expected value of the lottery ticket, would you pay $1 for a ticket? Round the answer to 3 decimal places. Omit the "tiny_mce_markerquot; sign in your response.)
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