Question: A sample of n sludge specimens is selected and the pH of each one is determined. The one-sample t test will then be used to

A sample of n sludge specimens is selected and the pH of each one is determined. The one-sample t test will then be used to see if there is compelling evidence for concluding that true average pH is less than 7.0. What conclusion is appropriate in each of the following situations?
a. n = 6, t = -2.3, α = .05
b. n = 15, t = -3.1, α = .01
c. n = 12, t = -1.3, α = .05
d. n = 6, t = .7, α = .05
e. n = 6, = 6.68, s/√n = .0820

Step by Step Solution

★★★★★

3.41 Rating (170 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The hypotheses are H 0 70 versus H a 70 In each case we want the onetail area to the le... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1172-M-S-H-T(5822).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

The tensile strength of fiber used in manufacturing cloth is of interest to the purchaser. Previous experience indicates that the standard deviation of tensile strength is 2 psi. A random sample of...

The tensile strength of a fiber used in manufacturing cloth is of interest to the purchaser. Previous experience indicates that the standard deviation of tensile strength is 2 psi. A random sample of...

A sample of concrete specimens of a certain type is selected, and the compressive strength of each specimen is determined. The mean and standard deviation are calculated as x 5 3000 and s 5 500, and...

1. A sample of sludge specimens is selected and the pH of each one is determined. The one-sample test will then be used to see if there is compelling evidence for concluding that true average pH is...

Please help me ... i dont understand... Oil content of fried sweet potato chips. The characteristics of sweet potato chips fried at different temperatures were investigated in the Journal of Food...

1.For the following pairs, indicate which do not comply with the rules for setting up hypotheses, and explain why. (Select all that apply.) (a) H 0 : = 12, H a : = 12 This pair complies. This pair...

Location Income ($1000) Size Years Credit Balance($) Urban 54 3 12 4016 Rural 30 2 12 3159 Suburban 32 4 17 5100 Suburban 50 5 14 4742 Rural 31 2 4 1864 Urban 55 2 9 4070 Rural 37 1 20 2731 Urban 40...

Possible Multiple Choice Questions for the Exam. Focus on the topics discussed in class. Chapter 1 Multiple Choice Identify the choice that best completes the statement or answers the question. ____...

ID Salary 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 65.1 27 36.1 61.4 46.6 73.3 39.7 23.2 74.6 22.8 23.4 62 40.7 23 24 51.1...

In a variation of the experiment in the previous question, the following materials were added to three separate cell-free systems, generating the indicated results: Materials Added Results...

Bell Manufacturing is attempting to choose the better of two mutually exclusive projects for expanding the firms warehouse capacity. The relevant cash flows for the projects are shown in the...

In using their entrepreneurship skills ievestors borrow sther people's money ( OPM ) and receive a greaber retum from their inveltment than the east is pay back the loan, What is mis called? ( a )...

1 List and discuss several key facts about international trade.

7.73 Emissions of nitrogen oxides, which are major constituents of smog, can be modeled using a normal distribution. Let x denote the amount of this pollutant emitted by a randomly selected vehicle...

7.72 Consider babies born in the normal range of 3743 weeks gestational age. The paper referenced in Example 7.27 (Fetal Growth Parameters and Birth Weight: Their Relationship to Neonatal Body...

7.71 Consider the population of all 1-gallon cans of dusty rose paint manufactured by a particular paint company. Suppose that a normal distribution with mean m 5 ml and standard deviation s 0.2 ml...

150 people are asked how many siblings they have? # of Siblings Frequency |Relative Frequency |Cumulative Frequency O 0.2533 38 28 0. 1867 2 32 0.2133 98 W 22 120 4 30 0.2 150 a. Complete the table...

can you please assist in the following Profit and Loss Statement ( projected for year 2 ) Monthly Cash Flow Sensitivity Analysis Balance Sheet ( at year - end )

Stock. java public class Stock { private String name; /ame of company private String symbol; //Symbol of company on Stock Exchange private double price; //price per share private int shares; /umber...