For each of the following statements, give the null hypothesis (Ho), and the alt

Question

For each of the following statements, give the null hypothesis (Ho), and the alternate hypothesis (H1). 1. The mean (average) pulse of lawyers is 80. 2. The mean (average) salary of your employees is at least $23,000 3. The mean (average) number of children your employees have in daycare more than 3. 4. The mean (average) percent of students passing the 12th grade proficiency exam is less than 40%. 5. The mean (average) amount of money spent per student on tutoring is $600.

Explanation / Answer

What critical region(s) for z would be used to test the hypotheses: H0:µ and Ha:µ?10,for a = 0.025 ? State the null hypothesis Ho and the alternative hypothesis Ha that would be used for a hypothesis test related to each of the following statements: The mean weight of packages shipped on Air Express during the past month was less than 36.7 lb. What critical region(s) for z would be used to test the hypotheses: H0:µ = 10 Ha:µ is not equal to 10, for alpha = 0.025 ? ----- Ha implies you have a two-tail test That gives you two tails with alpha/2 = 0.0125 ---- The z-values with a left/right tail of 0.0125 = +-2.2414 I used a TI-84 to get those values: "invNorm(0.0125)" ---- CV: z< -2.2414 or z > +2.2414 That means you will reject Ho if z< -2.2414 or z> 2.2414

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.