Example 3: 30% percent of all laundry detergent sold last year at Greatway’ s supermarket was Clean-All. Of 300 boxes of laundry detergent sold so far this year, 130 were Clean-All. Has the percentage of sales of Clean-All brand increased significantly? Use α = 0.05 level of significance. H0: p = 0.3, same as above but not always. H1: p > 0.3 Conclusion, Find a 95% Confidence interval for the true proportion of sales of Clean-All detergent. 1-PropZInterval 1-PropZInt Conclusion

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Description: Example 3: 30% percent of all laundry detergent sold last year at Greatway’ s supermarket was Clean-All. Of 300 boxes of laundry detergent sold so far this year, 130 were Clean-All. Has the percentage of sales of Clean-All brand increased signi

The confidence is the combined values of margin error and sample statistic. It is defined using the…

Answered: Example 3: 30% percent of all laundry…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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Example 3: 30% percent of all laundry detergent sold last year at Greatway’ s supermarket was Clean-All. Of 300 boxes of laundry detergent sold so far this year, 130 were Clean-All.

Has the percentage of sales of Clean-All brand increased significantly? Use α = 0.05 level of significance.

H0: p = 0.3, same as above but not always.

H1: p > 0.3

Conclusion,

Find a 95% Confidence interval for the true proportion of sales of Clean-All detergent.

1-PropZInterval

1-PropZInt

Conclusion

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