0 Question 2 B 0/1 pt '0 3 8 99 6) Details The maintenance department at the main campus of a large state university receives daily requests to replace fluorecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 64 and a standard deviation of 3. Using the 68-95-99] rule, what is the approximate percentage of lightbulb replacement requests numbering between 58 and 64? Do not enter the percent symbol. Question Help: El Video 1 El Video 2 Submit Question 0 Question 3 B 0/1 pt '0 3 8 99 6) Details The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 45 and a standard deviation of 5. Using the Empirical Rule rule, what is the approximate percentage of lightbulb replacement requests numbering between 35 and 45? Do not enter the percent symbol. Question Help: El Video Submit Question 0 Question 4 B 0/1 pt '0 2-3 8 99 0 Details Score on last try: 0 of 1 pts. See Details for more. 8 Get a similar question You can retry this question below The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 57 ounces and a standard deviation of 7 ounces. Use the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 50 and 78 ounces? [: % c) What percentage of the widget weights lie below 71 2': 96 Question Help: El Video Submit Question 0 Question 5 B 0/1 pt '0 3 8 99 0 Details In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 53 and a standard deviation of 8. Using the empirical rule, what is the approximate percentage of daily phone calls numbering between 37 and 69? Do not enter the percent symbol. 0 Question 7 B 0.17/1 pt 0 1-3 8 99 CD Details Score on last try: 0.17 of 1 pts. See Details for more. 8 Get a similar question You can retry this question below The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $120. 1240 1360 1480 1600 1720 1840 1960 Distribution of Prices Q What is the approximate percentage of buyers who paid more than 51840? 2.27 I What is the approximate percentage of buyers who paid between $1600 and $1720? 34.1 3 I What is the approximate percentage of buyers who paid between $1600 and 51960? 49.87 d\" % What is the approximate percentage of buyers who paid more than 51960? H What is the approximate percentage of buyers who paid between $1360 and $1600? What is the approximate percentage of buyers who paid between $1480 and $1720? I Question 1 B 0/1 pt '0 3 8 99 G Details Suppose the true proportion of voters in the county who support a restaurant tax is 0.35. Consider the sampling distribution for the proportion of supporters with sample size n = 119. What is the mean of this distribution? [: What is the standard error of this distribution? Question Help: Q Written Example Submit Question 0 Question 3 E4 011 pt '0 3 8 99 G Details Suppose the true proportion of voters in the county who support a specific candidate is 0.47. Consider the sampling distribution for the proportion of supporters with sample size n = 106. What is the mean of this distribution? [: What is the standard error (i.e. the standard deviation) of this sampling distribution, rounded to three Submit Question 0 Question 4 E4 011 pt '0 3 8 99 0 Details In an election, suppose that 55% of voters support a school levy increase. If we poll 146 of these voters at random, the probability distribution for the proportion of the polled voters that support a school levy increase can be modeled by the normal distribution pictured below. The bell curve below represents the distribution of these sample proportions. The scale on the horizontal axis is the standard deviation of the sampling distribution. So each tick mark represents a distance of one standard deviation on the distribution, with the middle tick mark being the mean of the distribution. Complete the boxes accurate to two decimal places . I I I I I Note that the second box is at the mean. The first box is two standard deviations below the mean, and the third box is two standard deviations above the mean. Complete the boxes accurate to two decimal places