Question

In: Statistics and Probability

A farmer wants to determine if the average growth of sunflowers is 4.5 ft per year...

A farmer wants to determine if the average growth of sunflowers is 4.5 ft per year or not. A sample of 41 sunflowers had a mean of 4.25 ft per year and a standard deviation of 0.7 ft per year.

a) This is a two-sided test;state the hypotheses.

b) State the rejection region for α=0.05

c)Will you reject or retain the null hypothesis? Show all work to support your answer.

d) Find the 95% confidence interval for average growth of sunflowers.Is the value of µ0 inside the 95% confidence interval?

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

A farmer wants to determine the mean number of eggs produced per month. A sample of...
A farmer wants to determine the mean number of eggs produced per month. A sample of 20 chickens shows they produce an average of 20 eggs per month with a sample standard deviation of of 2 eggs per month. a.What is the point estimate of the population mean? b.Why is a t-distribution necessary? _________________ c.what assumption must be made to use the t-distribution? _____________________ What is the value of t for a 95% confidence interval? _______________________ What is the 95%...
A farmer wants to determine the mean number of eggs produced per month. A sample of...
A farmer wants to determine the mean number of eggs produced per month. A sample of 20 chickens shows they produce an average of 20 eggs per month with a sample Standard Deviation of 2 eggs per month. A. What is the point estimate of the population mean ? B. Why is a t distribution necessary? C. What assumptions must be made to use the t distribution? D. What is the value of t for a confidence interval ?e. What...
Potential Gross Income 100,000 sq. ft for the coming year average rent $15.00 per ft. $  ...
Potential Gross Income 100,000 sq. ft for the coming year average rent $15.00 per ft. $   1,500,000 Less Vacancy Allowance (average 8%) $     (120,000) Effective Gross Income $   1,380,000 Cleaning expenses (5% of net rev) $      (69,000) Insurance ($ 0.02 per dollar replacement, R.C. = $40 per ft. $      (80,000) Management & Maintenance (11% of revenue) $    (151,800) Reserve for Replacement (savings for major repairs) $      (50,000) Property Taxes ($0.10 per $100 of R.C.) $          (4,000) $    (354,800) Estimated Net...
Potential Gross Income 100,000 sq. ft for the coming year average rent $15.00 per ft. $  ...
Potential Gross Income 100,000 sq. ft for the coming year average rent $15.00 per ft. $   1,500,000 Less Vacancy Allowance (average 8%) $     (120,000) Effective Gross Income $   1,380,000 Cleaning expenses (5% of net rev) $      (69,000) Insurance ($ 0.02 per dollar replacement, R.C. = $40 per ft. $      (80,000) Management & Maintenance (11% of revenue) $    (151,800) Reserve for Replacement (savings for major repairs) $      (50,000) Property Taxes ($0.10 per $100 of R.C.) $          (4,000) $    (354,800) Estimated Net...
For bending only, determine the lightest-weight W-shape to carry a uniform dead load of 4.5 kip/ft...
For bending only, determine the lightest-weight W-shape to carry a uniform dead load of 4.5 kip/ft plus the beam self-weight and a live load of 3.5 kip/ft on a simple span of 24 ft. Consider only the limit state of yielding and use A992 steel. Design by (a) LRFD
The average U.S. growth rate since 2008 has been 1.5% per year. Using the rule of...
The average U.S. growth rate since 2008 has been 1.5% per year. Using the rule of 72, how long will it take for the size of the U.S. economy to quadruple at this growth rate?
A researcher wants to determine whether there is a difference in the average age of elementary...
A researcher wants to determine whether there is a difference in the average age of elementary school, high school, and community college teachers. Teachers are randomly selected. Their ages are recorded below. Can you reject the claim that there is no difference in the average age of each group? Use 5% level of significance. Elementary Teachers High School Teachers CC Teachers 24 37 45 28 42 36 25 39 39 52 48 61 36 43 35 22 32 45 a)...
The owner of a factory wants to determine a confidence interval for the average wages at...
The owner of a factory wants to determine a confidence interval for the average wages at his factory. The population average wages is unknown. However, the owner was able to take a random sample of 64 workers. He found that the average salary for this sample of workers is $50,000. The population standard deviation is $3000. He calculated a 99% confidence interval for the population average wages at the factory. Which of the following choices is correct? Assume the distribution...
What is the price of a 25-year sovereign bond with a 4.5 per cent yield with...
What is the price of a 25-year sovereign bond with a 4.5 per cent yield with annual coupons of 3.5 per cent and a £1,000 face value? How do you define a sovereign bond? Take the above bond in and determine what would be the price of this bond if it paid no coupons? How would you define this type of bond? What would be the benefits for a corporation to issue a bond with no coupons?
What is the price of a 25-year sovereign bond with a 4.5 per cent yield with...
What is the price of a 25-year sovereign bond with a 4.5 per cent yield with annual coupons of 3.5 per cent and a £1,000 face value? How do you define a sovereign bond? Take the above bond in and determine what would be the price of this bond if it paid no coupons? How would you define this type of bond? What would be the benefits for a corporation to issue a bond with no coupons?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT