The Louisville Parks Department found that 48% of visitors to parks brought food to the park back in 2005. Use these results below from #1 to see if that proportion has changed. Be sure to include appropriate hypotheses, the p-value, and your conclusions. E= 1.96 x √0.43x0.57/100 E = 0.097 95% CI is P ±E 0.43 ±0.097 = (0.333, 0.527)

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=71.8σ=71.8. You would like to be 99% confident that your estimate is within 2.5 of the true population mean. How large of a sample size is required?     n =

A survey of 100 senior citizens was undertaken and it was found that 9 of them had the flu vaccine this year. Do these data suggest that the proportion of senior citizens who get the flu vaccine is significantly less than 12 % ? Test at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. What is the test statistic? Hint: Make sure you are rounding your answer to three decimal places. 0.923 X Using your answer from the previous question, find the p-value. What is the critical value for this test? Part 2

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=72.1σ=72.1. You would like to be 99% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=62.5σ=62.5. You would like to be 95% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? Round up to nearest whole number.

QUESTION 3 The mean amount of time it takes a kidney stone to pass is 16.7 days and thestandard d If the kidney stone passes in the middle 92.84%, they are considered to have a normal r Round all answers to 2 decimal places where possible. Provide your answer below:

* 00 F. Question 5 A particular fruit's weights are normally distributed, with a mean of 200 grams and a standard deviation of 30 grams. The heaviest 4% of fruits weigh more than how many grams? Give your answer to the nearest gram. Submit Question MacBook Air 08 F3 F5 F8 23 2. 3. J S H. B.

Please answer a-d

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=46.9σ=46.9. You would like to be 95% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?n =

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=40.4σ=40.4. You would like to be 90% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? n=