Question

on average babies under 3 months old sleep 12 hours a day. you suspect that babies who weigh less than 8 pounds sleep less than 12 hours a day. for this study the alternate hypothesis would be: a h₁: μ > 12 b h₁: μ < 12 c h₁: μ ≠ 12

Explanation:

The null hypothesis \(H_0\) is usually the statement of no difference or the status - quo. Here, the null hypothesis would be \(H_0:\mu = 12\) (where \(\mu\) is the mean number of sleep hours for babies who weigh less than 8 pounds). The alternate hypothesis \(H_1\) is what we suspect. Since we suspect that babies who weigh less than 8 pounds sleep less than 12 hours a day, we are looking for a one - sided (left - tailed) alternate hypothesis.

Answer:

B. \(H_1:\mu<12\)