Question 5 1 pt; For a group of 10 men subjected to a stress situation, re mean number of heartbeats per minute was 126 and the standard deviation was 4. nd the 95% condence interval of the true mean. Populations seems to be normally distributed. Please round to the nearest whole number and write your answer in the form I . l; for example (31,34) or {25.46}. Do not type in any extra spaces. Question 6 1 pts Thirty-ve percent of adult Americans are regular voters. A random sample of 250 adults in a mediumssize college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% condence. Please round to the nearest thousandth and write your answer in the form l . l: for example (31.34} or {25.46}. Do not type in any extra spaces. Question 7 1 pt; In a poll of 1000 likely voters, 560 say that the United States spends too little on ghting hunger at home. Find a 95% condence interval for the true proportion of voters who fell this way. Please round to the nearest thousandth and write your answer in the form l . l: for example (31.34} or {25.46}. Do not type in any extra spaces. Question 8 1 pt; The prices in dollars for a particular model of camera are shown below for 10 online retailers. Estimate the true mean price for this particular camera with 95% confidence. Assume normal distribution. 25, 240. 215.206.211.210, 193, 250, 225, 202 Please round to the nearest tenth and write your answer in the form I . l; for example (31.34} or (25,46). Do not type in any extra spaces