5. Cross stitch is a needlecraft that merges sewing and embroidery using x-shaped stitches to form a pattern. According to a crafter at Malaysia artexhibition, a large (2 x 2 meters) cross stitch typically takes at least 31 monthsto stitch. The average amount of time spent by a group of 16 cross stitchcrafters to complete one was 25 months, with a standard deviation of 7.2months.a) Examine the crafter's claim by using a 2.5% significance level. Assume thatthe time taken to finish a cross stitch is normally distributed for all cross stitchcrafters. [CO3, C4]b) Describe the Type I error in part a). Present the probability of creating thiserror. [CO2, A3 & A2]c) Discuss your decision of part (a) if the probability of creating a Type I erroris 0.001. [CO3, C2]

It is given that the average amount of time spent by a group of 16 cross stitch crafters to complete…

Answered: Cross stitch is a needlecraft that…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 3GP

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