The claim of the manufacturer of cell phone batteries is that the median life of a battery is more than 40 hours.Suppose a random sample of 75 batteries finds that 32 have a life of more than 40 hours. State the null hypothesis to test the claim.Assume that the population of all battery lives is not normally distributed. A)H₀: M_d $\ge$ 40 B)H₀: M_d $\neq$ 40 C)H₀: M_d 40 D)H₀: M_d $\le$ 40

Question

The claim of the manufacturer of cell phone batteries is that the median life of a battery is more than 40 hours.Suppose a random sample of 75 batteries finds that 32 have a life of more than 40 hours. State the null hypothesis to test the claim.Assume that the population of all battery lives is not normally distributed. A)H₀: M_d $\ge$ 40 B)H₀: M_d $\neq$ 40 C)H₀: M_d > 40 D)H₀: M_d $\le$ 40

Quizplus · Accepted Answer

H₀: M_d $\le$ 40 vs H_A: M_d > 40

The Claim of the Manufacturer of Cell Phone Batteries Is ≥\ge≥

The Claim of the Manufacturer of Cell Phone Batteries Is $\ge$