Formulate appropriate null and alternative hypothesis

Formulate the null and alternative hypotheses.

1. 1. The average salary of an accountant is Php24,620 per month in the Philippines.

• Ho: μ = 24,620

  Ha: μ > 24,620

• Ho: μ >24,620

  Ha: μ = 24,620

• Ho: μ = 24,620

  Ha: μ ≠ 24,620

• Ho: μ = 24,620

  Ha: μ < 24,620

     2.  A normal smartphone battery manufacturer claims that the mean life of a certain type of battery is more than 650 hours.

• Ho: μ = 650

  Ha: μ < 650

• Ho: μ ≤ 650

  Ha: μ > 650

• Ho: μ ≤ 650

  Ha: μ < 650

• Ho: μ = 650

  Ha: μ ≠ 650

      3. According to an international shipping company, a package from US can arrive to Manila in an average of less than 8 business days.

• Ho: μ < 8

  Ha: μ > 8

• Ho: μ = 8

  Ha: μ > 8

• Ho: μ ≥ 8

  Ha: μ ≠ 8

• Ho: μ ≥ 8

  Ha: μ < 8

4. 4. The average price of a certain car is greater than Php600,000.

• Ho: μ = 600,000

  Ha: μ ≠ 600,000

• Ho: μ ≤ 600,000

  Ha: μ > 600,000

• Ho: μ = 600,000

  Ha: μ < 600,000

• Ho: μ ≥ 600,000

  Ha: μ > 600,00

5. 5. A research organization reports that the mean of adult grocery shoppers who never buy the store brand in Metro Manila is 300.

• Ho: μ ≤ 300

  Ha: μ > 300

• Ho: μ = 300

  Ha: μ > 300

• Ho: μ =300

  Ha: μ < 300

• Ho: μ = 300

  Ha: μ ≠ 300