To test H0: = 50 versus H1: < 50, a simple random sample of size

Question:

To test H0: µ = 50 versus H1: µ < 50, a simple random sample of size n = 24 is obtained from a population that is known to be normally distributed.

(a) If x̄ = 47.1 and s = 10.3, compute the test statistic.

(b) If the researcher decides to test this hypothesis at the α = 0.05 level of signiﬁcance, determine the critical value.

(d) Will the researcher reject the null hypothesis? Why?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals Of Statistics

ISBN: 9780321844606

4th Edition

Authors: Michael Sullivan III

See More Books

Question Posted: Apr 28, 2015 12:27 AM

See More Questions

A simple random sample of size n is one in which a. Every nth member is selected from the population. b. Each possible sample of size n has the same chance of being selected. c. There is exactly the...
A simple random sample of size n = 300 individuals who are currently employed is asked if they work at home at least once per week. Of the 300 employed individuals surveyed, 35 responded that they...
A simple random sample of size n = 785 adults was asked if they follow college football. Of the 785 surveyed, 275 responded that they did follow college football.Construct a 95% condence interval for...
Find the incarization of the function x) - Vx+ 4 at a-5 and use it to approximate the numbers 8.97 and y9.05. Are these approximations overestimates or underestimates? SOLUTION The derivative of fx)...
What is the purpose of the temporal extensions to SQL that were introduced in SQL:2011?
Consider each of the following goods and services. For each, identify whether the law of one price will hold, and state whether the relative price, q g US/Foreign, is greater than, less than, or...
Laura Neilson, a job specialist with Vocational and Educational Services for Individuals with Disabilities, responded to an advertisement in a New York newspaper for a position as a shower, a job...
Wyer's Accounting Museum is exploring the purchase of a new building with a useful life of 15 years to use as its main gallery space. The building will cost $850,000. Once it has been purchased, the...
a) Risk analysis is the study of the underlying uncertainty of a given course of action and refers to the uncertainty of forecasted cash flow streams, the variance of portfolio or stock returns, the...
Alexa Markowitz is a realtor. She buys and sells properties on her own, and she also earns commission as an agent for buyers and sellers. She organized her business as a corporation on March 16,...
(a) Determine the critical value for a right-tailed test of a population mean at the = 0.1 level of signicance with 22 degrees of freedom. (b) Determine the critical value for a left-tailed test of...
To test H0: = 40 versus H1: 7 40, a simple random sample of size n = 25 is obtained from a population that is known to be normally distributed. (a) If x = 42.3 and s = 4.3, compute the test...
Evaluate each expression. (0.3)
What action can a company take to boost working capital? Group of answer choices Increase their line of credit Buy a new piece of equipment Collect outstanding AR Take out a long term loan and pay...
What steps must leaders take to build a learning culture? 2. In what ways is the culture in manufacturing organization similar to what Nadella faced when he took over Microsoft? 3. where would you...
9. Two charges are fixed at (-4, 0) and (+4, 0) as shown in the figure: q = +2 C and q2 = -2 C. What is the magnitude of the electric field at point P [with coordinate (0, 2)] due to charges q and 92...
Pick one of the companies on the Dow Jones Industrial Average (DJIA) and look up their financial information on Google. Look at their financial information and tell us any interesting trends that you...
The corporation has 150,000 shares of $2 par common stock authorized and 52,000 shares are currently outstanding. (You must compute the number of shares issued). Treasury stock shows a credit of...
State whether the following statement are True or False: Redemption of debentures means repayment of money that was taken by the company while issuing the debentures.
Find the inverse, if it exists, for the matrix. -1
Problems 3443 are based on material learned earlier in the course. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for the final exam. What...
In Problems 2554, solve each system. Use any method you wish. * 3xy + 2y2 = 0 x2 + xy = 6
In Problems 2554, solve each system. Use any method you wish. 9= || + 19
130 g of water is placed in a 10-g aluminum cup. Both the water and cup start at temperature 40 C. 30 g of ice at an initial temperature of 0 C is added to the water. The ice is allowed to melt and...
A small plastic ball of mass 5.86 10-3 kg and charge +0.178 C is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with...
Assume that the firm invests $170,000 today and $200,000 three years from now to get $75,000 at Year 1, $80,000 at Year 2, $75,000 at Year 3, $140,000 at Year 4, $165,000 at Year 5, and $155,000 at...

To test H0: = 50 versus H1: < 50, a simple random sample of size

Question:

Step by Step Answer:

a b This is a lefttailed test with 24 1 23 degrees ...View the full answer

Fundamentals Of Statistics

Students also viewed these Statistics questions