Distribution with unknown mean

Assignment Help Basic Statistics
Reference no: EM132053636

An agricultural researcher plants 25 plots with a new variety of corn that is drought resistant and hence potentially more profitable. The average yield for these plots is x = 150 bushels per acre. Assume that the yield per acre for the new variety of corn follows a normal distribution with unknown mean ? and that a 95% confidence interval for ? is found to be 150 ± 3.29. Which of the following is true?

A) A test of the hypotheses H0: ? = 150, Ha: ? ? 150 would be rejected at the 0.05 level.

B) A test of the hypotheses H0: ? = 150, Ha: ? > 150 would be rejected at the 0.05 level.

C) A test of the hypotheses H0: ? = 160, Ha: ? ? 160 would be rejected at the 0.05 level.

D) All the above.

Reference no: EM132053636

Questions Cloud

What is the probability of filling a cup : What is the probability of filling a cup between 23 and 32 ounces? Round your answer to four decimal places
What are the three uses of the chi-square test : What are the three uses of the Chi-Square test? What are the restrictions when using the z test for equal proportions?
What effect does stress have on the human body : What effect does stress have on the human body? How can stress be managed? 300 words APA. The response must be typed.
Find the test statistic for sample of size 22 : Find the test statistic for sample of size 22, mean 11.21, and standard deviation 2.90?
Distribution with unknown mean : Assume that the yield per acre for the new variety of corn follows a normal distribution with unknown mean ? and that a 95% confidence interval for
Explain which method is best for the data set : Explain which method is best for this data set. Why? Conduct a one sample T-test and interpret the results (use a population mean of 70).
How did you get for your regression line : How did you get for your regression line? What was your r value? What did this tell you?
What is the probability that exactly : What is the probability that exactly 10 out of 15 independently selected drivers are? convicted?
What is the relationship between accounting and bookkeeping : What is the relationship between accounting and bookkeeping? Are they the same? If they are different, how so?

Reviews

Write a Review

Basic Statistics Questions & Answers

  The anova summary table appears next along with the mean

question a researcher conducted and experiment on the effects of a new drug on depression. the researcher had a

  Problem-Birth and Death with Immigration

(Birth and Death with Immigration) Consider a population of a certain colonizing species. Suppose that each individual produces offspring at a Poisson rate ?.

  Average salary for a certain profession

The average salary for a certain profession is ?$75,500. Assume that the standard deviation of such salaries is ?26,000. Consider a random sample of 66 people

  In testing a population variance or constructing a

q1. a chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. usingthe

  Prove the given condition

Gary is at the top of Gail's preference list, and Gail is at the top of Gary's preference list. Prove that in every stable matching Gary and Gail are matched to each other.

  What percentage of series were located in other settings

a. What percentage of series were located in other settings besides California and New York?

  How much money allocated for investment in ratio

Suppose that $126,000 is to be allocated for advertising, research, and investment in the ratio 10:4:2. How much money will be allocated for each?

  Find the probability that the player makes both

A basketball player makes 60% of the free throws that he attempts, except that if he has just tried and missed a free throw then his chances of making a second.

  What is the mean weight of my ancient gold coins

What is the mean weight of my ancient gold coins - How do you consider this collection, a population or a sample - However, some formats are better than others in the sense that they convey important and relevant information in the given data set.

  Depict the set of elements

On a Venn diagram, depict the set of elements that are in subsets A or B but not in both. Also write this as a subset involving unions and intersections

  What is the null hypothesis

How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis in relation of the sample to the population?

  The probability distributions of the radii

Reconsider Prob. 22.6-4. Suppose now that more careful statistical analysis has provided new estimates of the probability distributions of the radii of the shafts and bushings.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd