1.The director of a state agency believes that the average starting salary for clerical employees in the state is more than $27,000 per year. To test her hypothesis, she has collected a simple random sample of 70 starting clerical salaries from across the state and found that the sample mean is $32,750. State the appropriate null and alternative hypotheses.

Group of answer choices

1. H0 : ? ? 27,000 HA : ?
2. H0 : ? ? 32,750 HA : ?
3. H0 : ? ? 27,000 HA : ? > 27,000
4. H0 : ? ? 32,750 HA : ? > 32,750

2.A mail-order business prides itself on its ability to fill customers' orders in two hours or less on average. Based on sample information, the manager decides if the desired standard is not being met. She will assume that the average hours to fill customers' orders is two or less unless the data suggest strongly otherwise. Establish the appropriate null and alternative hypotheses.

Group of answer choices

1. H₀: ? ? 2 hours H_A: ?
2. H₀: ? ? 2 hours H_A: ? > 2 hours
3. H₀: ? > 2 hours H_A: ? ? 2 hours
4. H₀: ? = 2 hoursH_A: ? ? 2 hours

3.Wishing to know the daily consumption of wine a company have selected a random sample of 41 people from the designated population. The following results were recorded:

\ft-Test: Two-Sample Assuming Equal Variances New Old Mean 42.14 43.23 Variance 0.46711111 0.56233333 Observations 10 10 Pooled Variance 0.51472222 Hypothesized Mean Difference O df 18 t Stat -3.3972307 P(T