In a survey involving 400 supermarkets around the country, it was found that 136 supermarkets sold a type of toiletries that contains a particular chemical above the level prescribed by the...


answer for c is 2156


In a survey involving 400 supermarkets around the country, it was found that 136<br>supermarkets sold a type of toiletries that contains a particular chemical above the<br>level prescribed by the government.<br>(a)<br>17.<br>Estimate the percentage of supermarkets in the country that sold a type of<br>toiletries containing a particular chemical above the prescribed level.<br>Obtain a 95 % confidence interval for the percentage of supermarkets that sold<br>a type of toiletries containing a particular chemical above the prescribed level.<br>Determine the size of the sample of supermarkets in the country that sold a<br>type of toiletries containing a particular chemical above the prescribed level<br>that can be estimated with an error of less than 2 % with a probability of 0.95.<br>(b)<br>(c)<br>

Extracted text: In a survey involving 400 supermarkets around the country, it was found that 136 supermarkets sold a type of toiletries that contains a particular chemical above the level prescribed by the government. (a) 17. Estimate the percentage of supermarkets in the country that sold a type of toiletries containing a particular chemical above the prescribed level. Obtain a 95 % confidence interval for the percentage of supermarkets that sold a type of toiletries containing a particular chemical above the prescribed level. Determine the size of the sample of supermarkets in the country that sold a type of toiletries containing a particular chemical above the prescribed level that can be estimated with an error of less than 2 % with a probability of 0.95. (b) (c)

Jun 02, 2022
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