I need answers to some Questions please.

1.) Part 3?

Lunch break: In a recent survey of 655 working Americans ages 25 34, the average weekly amount spent on lunch was $42.42 with standard deviation $2.93. The weekly amounts are approximately bellshaped. (a) Estimate the percentage of amounts that are between $39.49 and $45.35. Approximately 68% 'V of the amounts fall between $39.49 and $45.35. I Your answer is conect. {b} Estimate the percentage of amounts that are between $33.63 and $51.21. of the amounts fall between $33.63 and $51.21. l Your answer is [DH'ECL (c) Between what two values will approximately 95% of the amounts be? Approximately 95% of the amounts fall between $D and SD. Nuclear power: The following table presents the number of nuclear reactors as of August 2, 2013, in some countries that had one or more reactors. Country Number of Reactors Country Number of Reactors China 18 Sweden 10 Czech Republic 6 Switzerland 5 Finland 4 Romania France 58 Russia 33 Germany 9 Slovakia Hungary 4 South Africa India 20 South Korea 23 Iran Spain 8 Japan 50 Ukraine 15 Slovenia United Kingdom 16 Mexico United States 100 Netherlands PakistanPart 3 of 4 (c) Find the upper and lower outlier boundaries. The lower outlier boundary is X 5 The upper outlier boundary is Your answer is incorrect.A population has mean 1.1 = 29 and standard deviation 0 = 5. Round the answers to two decimal places as needed. (a) Find the zscore for a population value of 14. The zsoore for a population value of 14 is -. - Your answer is comect. However, 1you don't need to put zeros at the end of the number. Alternate Answer: The zscore for a population value of 14 is 3. (b) nd the zscore for a population value of 9. The zscore for a population value of 9 is -. l Your answer is [DITECL (c) What number has a zsoore of 2? E] has a zscore of 2. Get an education: A survey asked 32,109 people how much condence they had in educational institutions. The results were as follows. Round your answers to four decimal places if necessary. Response Number A great deal 10,029 Some 17,866 Hardly any 4214 Total 32,109 If Send data to Excel .1 Part 3 of 3 (c) If we use a cutoff of 0.05, is it unusual for someone to have some confidence in educational institutions? Based on a cutoff of 0.05, it (Choose one) unusual for someone to have some confidence in educational institutions. XA binomial experiment has the given number of trials n and the given success probability p. n = 10, p = 0.2 Part 1 of 3 (a) Determine the probability P (2). Round the answer to at least four decimal places. P (2) = 0.3020 Your answer is correct. Part 2 of 3 (b) Find the mean. Round the answer to two decimal places. The mean is 2.00 . Your answer is correct. Part: 2 / 3 Part 3 of 3 (c) Find the variance and standard deviation. Round the variance to two decimal places and standard deviation to at three decimal places. The variance is X 5 The standard deviation is