Confidence Interval For One Population Proportion Archives

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 90 households found that 67% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.67 $The sample size $ (n) = 90 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 105 households found that 63% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.63 $The sample size $ (n) = 105 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 80 households found that 61% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.61 $The sample size $ (n) = 80 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 110 households found that 66% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.66 $The sample size $ (n) = 110 $The confidence interval level $ = 95% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 95 households found that 64% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.64 $The sample size $ (n) = 95 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 75 households found that 62% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.62 $The sample size $ (n) = 75 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 120 households found that 68% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.68 $The sample size $ (n) = 120 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…

Confidence Interval For One Population Proportion

Microwave Cooking A survey of 85 households found that 60% use the microwave to prepare their meals. Find the 95% confidence interval for the proportion. Use Excel and round the answers to three decimal places.

Answer:Given:The sample proportion $ (\hat{p}) = 0.60 $The sample size $ (n) = 85 $The confidence interval level $ = 95\% $ Solution:The significance level $ (\alpha) : $$ \alpha = 1 – 0.95 $ $ = 0.05 $ The…