A college informs incoming students that the starting salary for a child clinical psychiatrist is $165,000. You think the college is truthful. Which is the null hypothesis? .5 point H0: salary = $165,000 H0: Salary ≠ $165,000
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A college informs incoming students that the starting salary for a child clinical psychiatrist is $165,000. You think the college is truthful. Which is the null hypothesis? .5 point
H0: salary = $165,000
H0: Salary ≠ $165,000
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- Which of the following is the first step in hypothesis testing? (a) Developing a null and alternative hypothesis. (b) Drawing a sample from the population. (c) It does not matter where you begin when you test hypotheses. (d) Setting the cutoff value for rejecting the null hypothesis.Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be overturned only if there is evidence against it. Which of the statements below might represent a null hypothesis? 1. the treatment increase survival rates 2.the teaching method raises SAT score 3. the teaching method does not chang SAT scoreA college informs incoming students that the starting salary for a child clinical psychiatrist is $165,000. You think the college is truthful. Which is the alternative hypothesis? Ha: Salary ≠ $165,000 Ha: salary = $165,000
- Food inspectors inspect samples of food products to see if they are safe. This can be thought of as a hypothesis test with the following hypotheses. H0: the food is safe Ha: the food is not safe The following is an example of what type of error? The sample suggests that the food is safe, but it actually is not safe. Choose one below a. type I b. type II c. not an errorDetermine the null and alternative hypotheses.At one school, the average amount of time that tenth-graders spend watching television each week is 21.6 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased. Choose the best asnwer below: A. H0: μ = 21.6 hoursHA: μ > 21.6 hours B. H0: μ = 21.6 hoursHA: μ ≤ 21.6 hours C. H0: μ < 21.6 hoursHA: μ > 21.6 hours D. H0: μ = 21.6 hoursHA: μ < 21.6 hours E. H0: μ < 21.6 hoursHA: μ = 21.6 hoursFood inspectors inspect samples of food products to see if they are safe. This can be thought of as a hypothesis test with the following hypotheses. H0: the food is safe Ha: the food is not safe The following is an example of what type of error? The sample suggests that the food is not safe, but it actually is safe. a. Type I error b. Type II error c. Not an error
- Which of the following statements represents a null hypothesis? Strawberries are more nutritious than raspberries. More people prefer Burger King over McDonald's cheeseburgers. COVID is not more dangerous than influenza virus. Smoking cigars has a lower risk of cancer compared to smoking cigarettes.1 You are asked to perform a hypothesis test that population mean is greater than 55. Which of the following is the correct statement of the null and alternative hypotheses for this test? a H₀: µ ≠ 55 H₁: µ > 55 b H₀: µ > 55 H₁: µ ≤ 55 c H₀: µ ≤ 55 H₁: µ > 55 d H₀: µ ≥ 55 H₁: µ < 55The body weight of a healthy 3-month-old colt should be about ? = 76 kg. (a) If you want to set up a statistical test to challenge the claim that ? = 76 kg, what would you use for the null hypothesis H0? ? > 76 kg? < 76 kg ? = 76 kg? ≠ 76 kg (b) In Nevada, there are many herds of wild horses. Suppose you want to test the claim that the average weight of a wild Nevada colt (3 months old) is less than 76 kg. What would you use for the alternate hypothesis H1? ? > 76 kg? < 76 kg ? = 76 kg? ≠ 76 kg (c) Suppose you want to test the claim that the average weight of such a wild colt is greater than 76 kg. What would you use for the alternate hypothesis? ? > 76 kg? < 76 kg ? = 76 kg? ≠ 76 kg (d) Suppose you want to test the claim that the average weight of such a wild colt is different from 76 kg. What would you use for the alternate hypothesis? ? > 76 kg? < 76 kg ? = 76 kg? ≠ 76 kg (e) For each of the tests in parts (b), (c), and (d), respectively,…