bran7940 bran7940

04-11-2022
Mathematics

Answered

we are growing two rows of cucumber plants. the first row is t reated with extra nitrogen in the soil. the second row is the control. the first row contai ns 17 plants and produces an average of 5.4 cucumbers per plant with a sample deviation of 1.3 cucumbers. the second row has 28 plants with an average of 5.1 cucumbers prod uced and a sample deviation of 2 cucumbers. is it reasonable (95% confidence) t o say that the nitrogen made a difference?

Answer :

Other Questions

a random sample of 64 sat scores of students applying for merit scholarships showed an average of 1200 with a standard deviation of 200. find the t value needed

the scores on a certain test are normally distributed with a mean score of 49 and a standard deviation of 3. what is the probability that a sample of 50 student

for an independent-samples t test where group 1 has 23 participants, a mean of 11.6, and a standard deviation of 3.1, and group 2 has 19 participants, a mean of

the cost of 5 gallons of ice cream has a variance of 49 with a mean of 30 dollars during the summer. what is the probability that the sample mean would differ f

A researcher was interested in studying americans email habits. She suspected that americans spend less than 7 hours a week answering their email. The general s

a square has a side length that is decreasing at a rate of 8 cm per second. what is the rate of change of the area of the square when the side length is 7 cm? (

the salaries of the employees of a corporation are normally distributed with a mean of $58,750 and a standard deviation of $4700. show the work to get your answ

for employees at a large company, the mean number of overtime hours worked each week is 9.2 hours with a population standard deviation of 1.6 hours. a random sa