While investigating the cause of sudden death in a patient w…

While investigating the cause of sudden death in a patient with asthma, the nurse finds that the patient’s medications were changed from systemic corticosteroids to inhaled corticosteroids. Which intervention, if followed, might have saved the patient from dying?

A study of the amount of time it takes a mechanic to rebuild…

A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If 40 mechanics are randomly selected, find the probability that their mean rebuild time exceeds 8.7 hours. a) (1pt) Define x-bar:  b) (1pt) Explain why  x-bar is normal c)  (3pts) Find the probability that their mean rebuild time exceeds 8.7 hours. Round the answer to 3 decimal places.

Solve the problem.The weights of the fish in a certain lake…

Solve the problem.The weights of the fish in a certain lake are normally distributed with a mean of 20 lb and a standard deviation of 9. If 9 fish are randomly selected, what is the probability that the mean weight will be between 17.6 and 23.6 lb? Make sure to first define x-bar and check its normality before calculating the probability (5pts)Define x bar:x bar is normal because: Prob=

Provide an appropriate response.Assume that adults have IQ s…

Provide an appropriate response.Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). Find the probability that a randomly selected adult has an IQ between 90 and 120 (somewhere in the range of normal to bright normal). Make sure to first define variable X before calculating the probability (4pts) Define X= Prob=

Use the given degree of confidence and sample data to constr…

Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for governor. Construct the 92% confidence interval for the true population proportion of all New York State union members who favor the Republican candidate. Make sure to include correct symbol, formula and round off rule for each step. (2pts) Point estimate (sample proportion) (Round to 3 decimal places)(3pts) Critical value ( Round to 2 decimal places)(3pts) Margin of Error (Round to 4 decimal places)(3pts) CI (Round to 4 decimal places)(1pt) Interpretation:

Solve the problem.The scores on a certain test are normally…

Solve the problem.The scores on a certain test are normally distributed with a mean score of 60 and a standard deviation of 5. What is the probability that a sample of 90 students will have a mean score less than 60.527? Make sure to first define x-bar and check its normality before calculating the probability (5pts)Define x bar:x bar is normal because: Prob=