Question

We want to determine whether jars of peanut butter have at least 12 ounces in them....

We want to determine whether jars of peanut butter have at least 12 ounces in them. The null hypothesis is that the mean is greater than or equal to 12. The alternate hypothesis is that the mean is less than 12. Thirtyone jars of peanut butter are tested. The test statistic is found to be 1.5. What is the p-value for this test?

0.9332

0.0668

0.1336

0.05

0.10

Homework Answers

Answer #1

The 1st option is the only correct option.

The detailed solution is given in the pictures below.

Please go through them carefully specially the notations.

Hope the solution helps. Thank you.

(Please do comment if further help is required)


Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Federal law requires that a jar of peanut butter that is labeled as containing 32 ounces...
Federal law requires that a jar of peanut butter that is labeled as containing 32 ounces must contain at least 32 ounces. An independent consumer advocate feels that a certain peanut butter manufacturer is shorting customers by under filling the jars so that the mean content is less than 32 ounces as stated on the label. The hypotheses tested are Ho: u= 32 oz; H1: u<32 oz. a) In the context of this example, describe type I and type II...
A coffee machine is supposed to dispense 12 ounces of coffee in each cup. A business...
A coffee machine is supposed to dispense 12 ounces of coffee in each cup. A business using one of these machines is concerned that it is dispensing less than 12 ounces. An inspector takes a sample of 16 cups of coffee, and finds a mean of ¯x=11.7x¯=11.7 ounces with a standard deviation of s=0.8s=0.8 ounces. (Assume coffee serving volumes are normally distributed.) 1. What are the null and alternate hypotheses for this study? H0: μ (< > ≤ ≥ =...
Questions 11 and 12 are based on the following information: An investigation of the effectiveness of...
Questions 11 and 12 are based on the following information: An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey, 12 customers were randomly selected to score the customer relationships both before and after the training. The differences of scores are calculated as the post-training survey score minus the pre-training survey score. The sample mean difference of scores is 0.5. The test statistic is 1.03 for testing whether the population...
Dr. Woz and Dr. Yaz want to test whether violent video games have an effect on...
Dr. Woz and Dr. Yaz want to test whether violent video games have an effect on aggressive thinking. In order to test aggressive thinking, Woz and Yaz are going to use a test developed at GTA University. The test has shown that scores greater than 70 on the test indicate that the subject is more likely to agree with statements that endorse aggressive behavior. Dr. Woz and Dr. Yaz select a random sample of n = 100 children from a...
A soda company sells one of its soft drinks in 12 ounce cans. In order to...
A soda company sells one of its soft drinks in 12 ounce cans. In order to ensure that every can has at least 12 ounces in it, the machines in the factory are set to fill each can with an average of 12.1 ounces of soda. Every week, a quality-control technician tests 10 cans to make sure that the average amount of soda in the cans is still 12.1 ounces. If the conclusion of the test is that the number...
Questions11and12 are based on the following information: An investigation of the effectiveness of a training program...
Questions11and12 are based on the following information: An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey, 12 customers were randomly selected to score the customer relationships both before and after the training. The differences of scores are calculated as the post-training survey score minus the pre-training survey score. The sample mean difference of scores is 0.5. The test statistic is 1.03 for testing whether the population mean difference µD...
a) Suppose we have a left-tailed hypothesis test about µ conducted at α = 0.10. If...
a) Suppose we have a left-tailed hypothesis test about µ conducted at α = 0.10. If the sample size is n = 7, what is the correct rejection region? Group of answer choices t > 1.440 z > 1.28 z < -1.28 t < -1.440 b) Danny was recently hired by Mr. Peanut to demonstrate (at α = 0.05) that less than 50% of Mr. Peanuts’ Mixed Nuts are peanuts. Danny randomly sampled 120 mixed nuts and found that 42...
The Basic Steps to Calculating a Hypothesis Test You want to start by determining whether you...
The Basic Steps to Calculating a Hypothesis Test You want to start by determining whether you are interested in working with a mean or a proportion. Then identify each of the parts listed below. In order to use the formulas for a hypothesis test we first need to confirm that the sample size requirements for the central limit theorem are satisfied. See the notes for more information. If the sample size is not met acknowledge that you need to proceed...
Absentee rates - Friday vs Wednesday: We want to test whether or not more students are...
Absentee rates - Friday vs Wednesday: We want to test whether or not more students are absent on Friday afternoon classes than on Wednesday afternoon classes. In a random sample of 302 students with Friday afternoon classes, 48 missed the class. In a different random sample of 307 students with Wednesday afternoon classes, 30 missed the class. The table below summarizes this information. The standard error (SE) is given to save calculation time if you are not using software. Data...
A psychologist wants to test whether there is any difference in puzzle-solving abilities between boys and...
A psychologist wants to test whether there is any difference in puzzle-solving abilities between boys and girls. Independent samples of twelve boys and ten girls were chosen at random. The boys took a mean of 42 minutes to solve a certain puzzle, with a standard deviation of 4.8 minutes. The girls took a mean of 37 minutes to solve the same puzzle, with a standard deviation of 5.9 minutes. Assume that the two populations of completion times are normally distributed,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT