Compute the expected frequency for brand

Assignment Help Basic Statistics

Reference no: EM13120815

A researcher would like to test the claim that 9 out of 10 doctors prefer brand x. A sample of 60 doctors is obtained and each is asked to compare Brand x with another leading brand. The data show that 48 of the doctors picked brand x. If these data were evaluated using a chi-square test for goodness of fit, what is the expected frequency for brand x?

Reference no: EM13120815

Questions Cloud

Amount of concentration in chemicals : Chandra has 5 liters of a 24% solution of sodium hydroxide in a container. What is the amount and concentration of sodium hydroxide solution she must add to this in order to end up with 8 liters of 27% solution?

Probability that more than two turn out to be defective : 10 parts produced by this machine are randomly selected, what is the probability that more than 2 turn out to be defective? Round your answer to four decimal places.

Probability that student uses fewer than six hundred minutes : The number of cell phone minutes used by high school seniors follows a normal distribution with a mean of 500 and a standard deviation of 50. What is the probability that a student uses fewer than 600 minutes?

Describe any adjustment that might be necessary : Given the facts presented, discuss the various factors that affect the reli- ability of (1) the comparable uncontrolled price method, (2) the resale price method, and (3) the cost-plus method.

Compute the expected frequency for brand : The data show that 48 of the doctors picked brand x. If these data were evaluated using a chi-square test for goodness of fit, what is the expected frequency for brand x?

Analyze the logic of the article : Choose an online newspaper article. Use the Elements of Reasoning Model to analyze the logic of the article. Your paper needs to be 1 page, 12 point font, and double spaced.

Find probability two balls are drawn : Two balls are drawn (without replacement) from an urn that contains four red balls, five green balls, and seven white balls

Illustrate what is the effective yearly interest rate : A $20 late fee will be added if the payment is made after the 15th of the month. Illustrate what is the effective annual interest rate if the clinic pays the bill on the 17th of the month?

Calculate the amount of estate tax : Roland had a taxable estate of $5.5 million when he died this year. (Reference the tax rate schedule in Exhibit 25-1 and the Unified Credit schedule in Exhibit 25-5 to answer this problem. Omit the "tiny_mce_markerquot; sign in your response).

User Account

All Pages