The proportion of households with pets is estimated to be 85% The proportion of 200 investigated households with pets is 0.78. Is this providing evidence that the 85% estimate is incorrect? Test at 95% confidence level Hint This is a hypothesis test You need to calculate the test statistic and compare it with the critical value to make your decision and conclusi

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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The proportion of households with pets is estimated to be 85% The proportion of 200 investigated households with pets is 0.78.
Is this providing evidence that the 85% estimate is incorrect? Test at 95% confidence level.
Hint This is a hypothesis test You need to calculate the test statistic and compare it with the critical value to make your decision and conclusion
Select one
O a No, since the test statistic is larger than the left critical value
O b Yes, since the test statistic is smaller than the left critical value
O c Yes, since the test statistic is more then the positive critical value
O d No, since the test statistic is less than the positive critical value
Transcribed Image Text:The proportion of households with pets is estimated to be 85% The proportion of 200 investigated households with pets is 0.78. Is this providing evidence that the 85% estimate is incorrect? Test at 95% confidence level. Hint This is a hypothesis test You need to calculate the test statistic and compare it with the critical value to make your decision and conclusion Select one O a No, since the test statistic is larger than the left critical value O b Yes, since the test statistic is smaller than the left critical value O c Yes, since the test statistic is more then the positive critical value O d No, since the test statistic is less than the positive critical value
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