6.73 Attitudes toward school. The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0 to 200. The mean score for U.S. college students is about 95, and the standard deviation is about 20. A teacher who suspects that older students have better attitudes toward school gives the SSHA to 25 students who are at least 30 years of age. Their mean score is ¯x = 103.3.

1. Assuming that σ = 30 for the population of older students, carry out a test of

   H₀: μ = 95

   H_a: μ > 95

   Report the P-value of your test, and state your conclusion clearly.

2. Your test in part (a) required two important assumptions in addition to the assumption that the value of σ is known. What are they? Which of these assumptions is most important to the validity of your conclusion in part (a)?

The Survey of Study Habits and Attitudes (SSHA) is a phychological test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0 to 200. The mean score for U.S. college students is about 115, and the standard deviation is about 30. A teacher who suspects that older students have better attitudes toward school gives that the SSHA to 25 students who are at least 30 years of age. Their mean is ¯x = 127.8.

(a) Assuming that σ = 30 for the population of older students, carry out a test of

H0 : µ = 115

Ha : µ > 115

Report the P-value of your test, and state your conclusion clearly.

(b) Your test in part (a) required two important assumptions in addition to the assumption that the value of σ is known. What are they? Which of these assumptions is most important to the validity of your conclusion in part (a)?

Distinguish between equity and efficiency. b) What is consumer sovereignty and how is it manifested in a market system? c) Would you describe the market system as equitable or efficient? Detail your reasoning. d) Which of the following is motivated by an efficiency concern? Explain your reasoning. i. In 2009, the Obama administration increased unemployment benefits. ii. As part of an economic stimulus package, each taxpayer received a $3,000 tax rebate check. iii. Following a six-month drought, a city banned homeowners from watering their lawns in an effort to conserve water. iv. Some U.S. colleges have cut back on merit scholarships since these programs siphon money from need-based programs, thus harming lower-income students with greater financial need.

Find the maximum point between x = -1 to 0 Find the minimum point between x = 0 to 1

Use Golden Search section method

Use 10 iterations

Describe three major concepts in each of the TranscationalLeadership Style. (Major Concepts) Include an application section for the leadership style. In this section describe how you would apply these major concepts in your practice. Address issues of diversity and include other stakeholders, if applicable, in your discussion. (From Theory to Practice)

What is one an example from your own academic or professional experience where correlation has been confused with causation? What other variable(s) might explain the apparent relationship? Knowing what you know now about correlation and causation, how would you interpret the apparent relationship between the variables in your example?

Compose a letter to your English-speaking pen pal about your pastimes. Make sure to include the following:

Write a paragraph about what you typically do on Saturday or Sunday afternoons.

Use at least two different stem-changing verbs from Chapter 4.

Write at least four sentences using the construction ir a + [infinitive] to describe what you and your friends or family plan on doing next weekend.

Include at least two of the pastimes/activities.

One of your friends has recently married and has now confided in you that she is pregnant. She knows you’re taking this class in lifespan development and asked for your input concerning what she can expect when giving birth, and she want your suggestions concerning her childbirth options. What would you tell her about the three stages of birth, complications she might expect, options about the use of drugs, and the childbirth strategies that are available to her

You are the Associate Manager in-training of a service/hospitality/retail establishment on the Humber North Campus (for instance, Caps, Humber Room, Humber’s weight/exercise room, Humber Student Federation, or Humber’s Bookstore). A regular patron wrote your boss an e-mail saying that she lost her backpack containing her class materials for the semester when she was in last week; in her e-mail, she has asked your boss to pay for her losses. Clearly posted on the wall at the entrance to your establishment, however, is a sign advising all guests that the management is not responsible for the loss of any personal belongings.

Your boss wants you to experience all facets of administration and so has asked you to reply to the e-mail. Using the INDIRECT APPROACH, write a refusal e-mail to this patron, applying what you have learned about sending negative messages. Be sure to include any alternative you can offer this faithful customer.

INDIRECT E-MAIL CONTENT REQUIREMENTS

• Please note that you will be writing an e-mail NOT a letter. Remember the format!
• Your refusal e-mail must say "no" in such a way that your reader not only understands, but also accepts the message.
• Make up names, job titles, addresses, and facts that you need.
• Remember that part of your grade is based on your providing “significant and sufficient” details to explain why you are refusing and to regain goodwill.
• Include an alternative where appropriate. You may make up details about any alternatives you can offer your patron, including gift certificates, price reductions, free samples, etc.
• Edit carefully for style/tone, structure, format, and grammar Use the comments on your previous assignments to remind you of areas where you need to focus.
• Use what you learned in Week 3 about effective e-mails, paying particular attention to your subject line, paragraphing, and graphical highlighting.
• The body of your e-mail should be about 260-300 meaningful words long.

Two proposed computer mouse designs were compared by recording wrist extension in degrees for 24 people who each used both mouse designs.† The difference in wrist extension was calculated by subtracting extension for mouse type B from the wrist extension for mouse type A for each person. The mean difference was reported to be 8.82 degrees. Assume that this sample of 24 people is representative of the population of computer users.

(a)

Suppose that the standard deviation of the differences was 13 degrees. Is there convincing evidence that the mean wrist extension for mouse type A is greater than for mouse type B? Test the relevant hypotheses using a 0.05 significance level. (Use

μ_d = μ_A − μ_B.)

State the appropriate null and alternative hypotheses.

Find the test statistic and P-value. (Use a table or technology. Round your test statistic to one decimal place and your P-value to three decimal places.)

State the conclusion in the problem context.

b.

Suppose that the standard deviation of the differences was 33 degrees. Is there convincing evidence that the mean wrist extension for mouse type A is greater than for mouse type B? Test the relevant hypotheses using a 0.05 significance level. (Use

μ_d = μ_A − μ_B.)

State the appropriate null and alternative hypotheses.

Find the test statistic and P-value. (Use a table or technology. Round your test statistic to one decimal place and your P-value to three decimal places.)

State the conclusion in the problem context.