Question

In: Math

Write the null and alternative hypotheses in notation for each of the following statements. 3a. [1...

Write the null and alternative hypotheses in notation for each of the following statements.

3a. [1 point] The μ for scores on the Wechsler Adult Intelligence Test is 100.

3b. [1 point] For a population of 25- to 54-year-old women, the mean amount of television watched each day is 4.4 hours.

3c. [1 point] The mean reaction time of 19-year-old males to a simple stimulus is at least 423.0 milliseconds.

Given the following information, test whether the population mean is equal to the given value μ0. Provide the following:

  1. The appropriate test statistic (zobs or tobs)
  2. The critical value of the test statistic
  3. A statement of your conclusion (i.e., is the null rejected?)

4a. [3 points] Two-tailed test, μ0=100, σx̄=25, x̄=70, N=86, α=.01

4b. [3 points] Two-tailed test, μ0=87, Sx̄=2.9, x̄=92, N=37, α=.05

Solutions

Expert Solution

milcah answered 2 hours ago
Next > < Previous

Related Solutions

Write the null and alternative hypotheses for each of the following examples. Determine if each is...
Write the null and alternative hypotheses for each of the following examples. Determine if each is a case of a two-tailed, a left-tailed, or a right-tailed test. Also determine the sampling distribution for the hypothesis test. a.To test if the mean number of hours spent working per week by college students who hold jobs is different from 20 hours. b.To test whether or not a bank’s ATM is out of service for an average of more than 10 hours per...
Write the null and alternative hypotheses for each of the following examples. Determine if each is...
Write the null and alternative hypotheses for each of the following examples. Determine if each is a case of a two-tailed, a left-tailed, or a right-tailed test. (a) To test if the mean number of hours spent working per week by college students who hold jobs is different from 20 hours (b) To test whether or not a bank’s ATM is out of service for an average of more than 10 hours per month (c) To test if the mean...
1. Set up the following statements as a null and an alternative hypotheses. a) A cereal...
1. Set up the following statements as a null and an alternative hypotheses. a) A cereal manufacturer is testing its cereal filling process. Its goal to have each cereal box contain 368 grams. b) A company claims that the life of its Milemaster tire exceeds 47,000 miles. c) We want to test if college students take less than five years to graduate from college. d) We want to test whether the mean height of 8th graders is 66 inches.
For each of the following: a) state the null and alternative hypotheses                               &n
For each of the following: a) state the null and alternative hypotheses                                                     b) state the type I & type II errors                                                     c) state the consequences of each error                                                     d) is one more serious? Explain. 1) You have created a new manufacturing method for producing widgets which you claim will reduce the time necessary for assembling the parts. Currently it takes 75 seconds to produce a widget. The retooling of the plant for this change is very expensive...
State the null and alternative hypotheses for each of the following situations (each ½ point): a)...
State the null and alternative hypotheses for each of the following situations (each ½ point): a) A guideline for a telemarketing company states the mean time for completed calls should not exceed four minutes. Each month the company’s owner selects a random sample of call logs to determine whether the call-time goal is being met. b) General Crunch Corporation distributes Mini-Oats Cereal in boxes with a stated weight of 18 ounces. To determine whether the filling machine should be adjusted,...
State the null and alternative hypotheses for each of the following situations. (That is, identify the...
State the null and alternative hypotheses for each of the following situations. (That is, identify the correct number μ0 and write H0:μ=μ0 and the appropriate analogous expression for Ha.) A.      The average July temperature in a region historically has been 74.5°F. Perhaps it is higher now. B.      The average weight of a female airline passenger with luggage was 145 pounds ten years ago. The FAA believes it to be higher now. C.      The average stipend for doctoral students in a particular discipline at...
For each of the following statements: write the null and alternative hypothesis; state whether the test...
For each of the following statements: write the null and alternative hypothesis; state whether the test is left-, right-, or two-tailed, and state what the type I and type II errors would be in the context of the problem. (a) A researcher wants to show that at most, 20% of next year’s wheat crop will be exported to the Soviet Union. (b) A company claims that on average, American homemakers drink 3 cups of coffee per day.
For the following statements, state the null and alternative hypotheses and identify which represents the claim....
For the following statements, state the null and alternative hypotheses and identify which represents the claim. Determine when a type I or type II error occurs for a hypothesis test of the claim. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed, and explain your reasoning. Explain how you should interpret a decision that rejects the null hypothesis. Explain how you would interpret a decision that fails to reject the null hypothesis. a. It is reported that the number...
Choose whether the following statements are true or false. The null and alternative hypotheses should be...
Choose whether the following statements are true or false. The null and alternative hypotheses should be written in terms of the sample statistic. TrueFalse The test statistic is computed assuming that the null hypothesis is true. TrueFalse The test statistic is usually equal to the sample statistic ?⎯⎯⎯⎯⎯ TrueFalse The p-value is the probability that the null hypothesis is true. TrueFalse 19. The p-value is the probability that the alternative hypothesis is true. TrueFalse If the p-value is smaller than...
Which of the following statements likely would include information to produce null and alternative hypotheses statements...
Which of the following statements likely would include information to produce null and alternative hypotheses statements for a potential study? A. Green plants exhibit enough light B. Green plants exhibit enough light for photosynthesis C. Green plants do not exhibit a high rate of growth when planted close to light. D. Green plants do exhibit high rates of growth. Please explain any option you choose.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT