T-test hypothesis test for a mean

Assignment Help Basic Statistics

Reference no: EM13107542

A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?

The Eagle Ridge Contractors Association claims the average price of a home in their subdivision is $125,250. A sample of 36 homes for sale in this subdivision has an average selling price of $127,500 with a standard deviation of $7,250. At alpha = 0.05, what is the test value?

What is the critical t-value for a two-tailed test when alpha = 0.02 and d.f. = 19?

Reference no: EM13107542

Questions Cloud

Determine what is the density of the oxygen gas : Determine what is the density of the oxygen gas in the full bottle If A cylindrical gas lecture bottle has internal dimensions of 18.0 cm in diameter and a height of 49.0 cm and weighs 1.75 kg when empty.

Can co-workers reject to cross the picket line : If therefore do the workers have the right to be paid while they are striking? Can non-workers participate in the picketing? Can co-workers reject to cross the picket line? Explain.

Determine the enthalpy for the given reaction : Determine the enthalpy for the given reaction as CS2

Make an in-depth comparative analysis research paper : Make an in-depth comparative analysis research paper among two different firms operating in two different countries however which have similar challenges. This analysis will be an opportunity for you to compare and contrast as well as critically a..

T-test hypothesis test for a mean : A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?

Compute the activation energy for the flashing process : Compute the activation energy for the flashing process. When At 29 o C the average rate is 3.3 flashes every 10 seconds; at 23 degree Celsius the average rate

How much influence new pay strategy have on payroll budget : What changes must be made in company's compensation strategy as result of this new direction? You expect your boss will be surprised at how much influence new pay strategy will have on payroll budget.

Explain rights that help to define a broad definition : Although there is no clear definition of privacy, Patricia Werhane outlines three rights that help to define a broad definition. What are these three rights?

Critical value of t distribution : Find the critical t alpha/2 assuming the population is normally distributed, the confidence level is 95%, n=101 and sigma is unknown.

User Account

All Pages