Question: A random sample of 81 eighth grade students scores on a national mathematics assessment test has a mean score of 279 This test result prompts

A random sample of 81 eighth grade students scores on a

A random sample of 81 eighth grade students scores on a national mathematics assessment test has a mean score of 279 This test result prompts a state school administrator to declare that the mean score for the state s eighth graders on this exam is more than 270 Assume that the population standard deviation is 39 At 0 05 is there enough evidence to support the administrator s claim Complete parts a through e a Write the claim mathematically and identify Ho and H Choose the correct answer below OA Ho 2270 claim H 270 O D Ho 270 claim Ha 270 b Find the standardized test statistic z Z Round to two decimal places as needed B Ho 270 Ha 270 claim E Ho 270 Ha 270 claim CLOS C Ho 270 Ha 270 claim OF Ho 270 claim Ha 270

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Sebastian Trains Co (ST) is a UK based rail operating company which holds three UK rail franchises. The franchises allow ST to run trains on the rail network in a particular geographical area within...

Please read the instructions in the pictures at the end before start working in this Hypothesis Activity: Test Scores for Eighth Graders: A random sample of 81 eighth grade? students' scores on a...

A random sample of 78 eighth grade students' scores on a national mathematics assessment test has a mean score of 273. This test result prompts a state school administrator to declare that the mean...

1.)Find the complement of the claim. >406 Which is H0 and which is Ha? 2.)Use the given statement to represent a claim. Write its complement and state which is H0 and which is Ha. p>0.57 Find the...

A random sample of 78 eighth grade students' scores on a national mathematics assessment test has a mean score of 264. This test result prompts a state school administrator to declare that the main...

1.)Find the range of the data set represented by the graph. 70 75 80 85 90 95 100 x A dot plot has a horizontal axis labeled from 70 to 100 in increments of 1. The graph consists of a series of...

7.2.31-T homework Lab & Mastering - 12880.202020 Pearson's MyLab & Mastering - 12880.202020 Do Homework - Benny Perales MATH1442.V02 - Elementary Statistical Methods Benny Perales & | 04/18/20 7:15...

A random sample of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 277. This test result prompts a state school administrator to declare that the mean...

'- mathxlcom MyLab and Mastering M Do Homework , Review f... Take a Test Jason gordm C Chegg Search Does (Do) the mode(s) r... E Course Hero E Numbaa 7 , Murda W... Math 201/Busi 230 004 Fall 21 135"...

Monica Smith 10/29/22 9:53 PM entary Statistics Question 23 of 25 This test: 100 point(s) possible 103 Submit test This question: 4 pointis) possible A random sample of 75 eighth grade students'...

Of / (2 complete) This Quiz: 7 pts possible Question Help A random sample of 76 eighth grade students' scores on a national mathematics assessment test has a mean score of 272. This test result...

We want to design a 16GB YTE memory system that can be accessed in bytes using 4G * 1 DRAM CHIP. Show memory organization that includes chip arrays, various input/output signals, MAR, mapping to MBR,...

On January 1, 2014, Manor Inc. signed a 6-year noncancelable lease for a printing press. The terms of the lease called for Manor to make annual payments of $54,291 at the beginning of each year,...

Which one of the following is an example of a sunk cost? a , $ 7 5 0 paid last year to rent office space. b . $ 7 5 0 reduction in Project X revenue if a firm commences selling Project y

Multiple Choice Questions 1. In a supply and demand graph, the triangular area under the demand curve but above the market price is a. The consumer surplus. b. The producer surplus. c. The marginal...

The following information relates to the 2014 debt and equity invesm1ent transactions of Wildcat Ltd., a publicly accountable Canadian corporation. All of the investments were acquired for trading...

The transactions relating to the formation of Blue Co. Stores, Inc., and its first month of operations follow. Prepare an answer sheet with the columns shown. Record each transaction in the...

Diaz Company was organized on January 1. During the first year of operations, the following plant asset expenditures and receipts were recorded in random order. InstructionsAnalyze the foregoing...

a. The Supplies account had a balance of $1,200 at the beginning of the month and $1,600 at the end of the month. The cost of supplies purchased during the month was $3,900. Calculate the cost of...

Tori and some other childeen experimented with balls to see which ones rolled. First using a piece of cardboard to use as a ramp, they angled it on a block to the floor to test the balls. Then Tori...

Equipment with an estimated useful economic life of four years has an NPV of 4,200 using an 8% discount rate. What is the annualised equivalent of the 4,200 NPV?

Using internal rate of return, which of the two projects in Question 46.19A would be preferred?

Which of the following two mutually exclusive alternatives should be selected if a 7% interest rate is used for the calculation of net present value? Net cash flow Net cash flow Net cash flow Year 0...