# A simple random sample of size n=450 individuals who are currently employed is asked if they work at home at least once per week

1.A simple random sample of size n=450 individuals who are currently employed is asked if they work at home at least once per week. Of the 450 employed individuals surveyed, 44 responded that they did work at home at least once per week. Construct a 99% confidence interval for the population proportion of employed individuals who work at home at least once per week.The lower bound is ?2. A simple random sample of size n=21 is drawn from a population that is normally distributed. The sample mean is found to be x=62 and the sample standard deviation is found to be s=10. Construct a 90 % confidence interval about the population mean.The 90 % confidence interval is (? ,? ).3.A simple random sample of size n=40 is drawn from a population. The sample mean is found to be x=121.3 and the sample standard deviation is found to be s=12.4. Construct a 99% confidence interval for the population mean.The lower bound is ?. 4. In a survey of 1040 adults, a poll asked, “Are you worried or not worried about having enough money for retirement?” Of the 1040 surveyed, 630 stated that they were worried about having enough money for retirement. Construct a 90% confidence interval for the proportion of adults who are worried about having enough money for retirement.A 90% confidence interval for the proportion of adults who are worried about having enough money for retirement is

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