Q1) The director is considering introducing new packaging for an existing product.Two styles of packaging, X and Y, were proposed. The company decided to try the newpackaging in a random sample of shops. The sample sizes and the results are givenbelow:Packaging XPackaging YSample size6050Mean sales280300Standard deviation of sales5070(a) Test, at the 0.05 level of significance, whether the sales for the product with Ypackaging were significantly higher than that for the product with X packaging.(b) Compute the p-value and indicate whether it leads to the same conclusion.

Answered: Q1) The director is considering…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Buyer's Digest is rating thermostats manufactured by two manufacturers, Thermorite and Tempking. In a recent test, 28 thermostats from Thermorite and 12 thermostats from Tempking were randomly selected and placed in a test room that was maintained at a temperature of 68°F. Average temperature readings were as follows: Thermorite: 68 Tempking: 66 Sample standard deviations were: Thermorite: 0.52 Tempking: 0.8 If we want to conduct a hypotheses test with a-05 to see whether the temperature reading variance for Thermorite is smaller than Tempking. what is the correct test statistic? (Round your answer to three decimal places) Test Statistic
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