Purchase Solution

Hypothesis testing for mean

Not what you're looking for?

Ask Custom Question

Procyon Mfg. produces tennis balls. Weights are supposed to be normally distributed with a mean of 2.035 ounces and a standard deviation of 0.002 ounces. A sample of 25 tennis balls shows a mean weight of 2.036 ounces. At α = .025 in a right-tailed test, is the mean weight heavier than it
is supposed to be?

Purchase this Solution
Solution Summary

Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.

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.

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.

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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Test of hypothesis

    Make at least one comment for each step. ** See ATTACHED Excel file for complete details ** What is the p value? Describe the steps in formal hypothesis testing. Make at least one comment for each step.

  • Test of hypothesis

    Using formal hypothesis testing the solution provides a step-by-step computation of the p-value, providing that the population mean is not 7. Please see Excel file attached for further details.

  • Testing Hypothesis

    262992 (Statistics) Hypothesis Testing Testing Hypothesis.

  • Calculation of Confidence Intervals

    If you know the confidence intervals for population mean with confidence level 1-alpha, for example, say, it is (a, b); confidence level 1-alpha=95%; then we can test a hypothesis H0: mu=c against H1; mu is NOT equal c; at a

  • Hypothesis testing for mean

    Clearly the sample is 25 which is above the proposed value of the population mean  =24 Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included.

  • Two real life examples of hypothesis testing technique

    Hypothesis being tested: Null: Online method is as effective as postal method. Mean score for both methods are equal. Alternate hypothesis: Online method is more effective. Mean score for online training > mean score for postal method.

  • 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 .

  • Hypothesis Testing (Z Testing)

    249992 Hypothesis Testing (Z Testing) A manufacturer believed he can get $1240 for his product.

  • Hypothesis testing and value of test statistic

    Using Microsoft excel Add - ins  megastat  hypothesis testingmean vs hypothesized value Hypothesis Test: Mean vs.

  • confidence intervals and hypothesis testing

    For example, hypothesis testing could just apply t test without referring to confidence interval while the confidence interval offers a range of data which offers a better view how it is close to the stated mean in the null hypothesis.

View More Related Solutions