Purchase Solution

Hypothesis Testing of Mean: P-value Method

Not what you're looking for?

Ask Custom Question

Auntie Pam's Home Made Wild Grape Jelly has been a great hit through online sales. She has recently expanded her small factory and acquired a new filler machine to accommodate the increased demand, especially for the 12 ounce jar, which is the most popular. Her son (and summer partner) Will has raised concerns that the new machine may be either underfilling or overfilling the 12 ounce jars. Both Pam and Will realize that neither is desirable, since underfilling leads to customer complaints and overfilling leads to waste and lost profits.

Will takes a random sample of 25 jars and finds the sample mean is 12.05 ounces. The manufacturerâ??s specs indicate the population standard deviation for the machine is 0.125 ounces.

Help Will and Auntie Pam out by using MegaStat to run a hypothesis test to address their concerns.
In particular, what is the p-value, and how much evidence is there to reject the null hypothesis:

And accept the alternative hypothesis:

Ho: u = 12
Ha: does not = 12

The p - value =
Round your final answer to three decimal places.

The weight of evidence against the null hypothesis, and in support of the alternative hypothesis:

Some evidence, Strong Evidence, Very Strong Evidence, Extremely Strong Evidence?

Purchase this Solution
Solution Summary

The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Mega stat output is also included.

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Hypothesis Testing for the Mean (Large Samples)

    264011 Hypothesis Testing for the Mean (Large Samples) Hypothesis Testing for the Mean (Large Samples) 1. Use the method specified to perform the hypothesis test for the population mean .

  • Testing Hypothesis

    Use the P-value method unless your instructor specifies otherwise. A random sample of 100 babies is obtained, and the mean head circumference is found to be 40.6 cm.

  • Hypothesis Testing for Mean-Local Tire Store

    Degrees of Freedom 17 t Test Statistic -2.651650429 Lower-Tail Test Lower Critical Value -2.566933975 p-Value 0.008391484 Reject the null hypothesis The solution provides step by step method for the calculation of testing of hypothesis

  • Hyplthesis Testing of Mean & Proportion

    P-value or critical z0 or t0.: 5. Rejection Region: 6. Decision: 7. Interpretation: b. Use the P-value method.

  • Hypothesis testing for a given claim

    Use the P-value method unless your instructor specifies otherwise.

  • Hypothesis Testing of Mean: Z & t test

    Use the P-value method or the traditional method as indicated. Identify the null hypothesis, alternative hypothesis, test statistic, critical values or P-value, conclusion about null hypothesis and final conclusion that address original claim.

  • Hypothesis Testing of Mean: P-value Method

    394610 Hypothesis Testing of Mean: P-value Method Use the p value method to determine whether or not to accept or reject the null and alternate hypotheses. 1.

  • Hypothesis Testing: Test Statistic and P-Value

    The solution provides a step by step method for hypothesis testing, specifically the calculation of the test statistic and p-value in a given situation.

  • Hypothesis testing for population mean

    170679 Hypothesis testing for population mean under p value approach The analyze results of two instruments A & B, show the following data: Instrument A : Mean = 14.2, Std Dev = 1.4, N = 250 Instrument B : Mean = 13.0, Std Dev = 0.8, N = 200 Significance

  • Hypothesis Testing of Mean

    Here the p value is 0.01388. Thus there is much evidence against the null hypothesis. The solution provides step by step method for the calculation of testing of hypothesis.

View More Related Solutions