B Quiz: 6.1 & 6.2 13 Question 15 of 17 This quiz: 17 point(s) possible This question: 1 point(s) possible Submit qui You construct a 95% confidence interval for a population mean using a random sample. The confidence interval is 24.9
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- Sleeping outlier: A simple random sample of eight college freshmen were asked how many hours of sleep they typically got per night. The results were… answer the following down below.▬ K A genetic experiment with peas resulted in one sample of offspring that consisted of 449 green peas and 165 yellow peas. 6 e this View an example Get more help - Y H & a. Construct a 95% confidence interval to estimate of the percentage of yellow peas. b. Based on the confidence interval, do the results of the experiment appear to contradict the expectation that 25% of the offspring peas would be yellow? N a. Construct a 95% confidence interval. Express the percentages in decimal form,A psychiatrist is interested in finding a 98% confidence interval for the tics per hour exhibited by children with Tourette syndrome. The data below show the tics in an observed hour for 11 randomly selected children with Tourette syndrome. Round your decimal 3 places. 1,12,11,6,10,1,4,7,8,1,9 With 98% confidence the population mean number of tics per hour that children with Tourette syndrome exhibit is between ____ and ____ If many groups of 11 randomly selected children with Tourette syndrome are observed, then a different confidence interval would be produced from each group. About ____ percent of these confidence intervals will contain the true population mean number of tics per hour and about ____ percent will not contain the true population mean number of tics per hour.Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.Determine the confidence level. Determine the confidence level for confidence interval shown in the figure below. 5-10 =.10 98% 95% 90% 80% arch Cc F2 F3 F4 F5 F6 F7 F8 F9 F10 & 4. 5 * 00 %#3AA A www-awn.aleks.com t1 items wai... T (1) THE STYLE... ** lissa Black Lo... Bb Thread: Week... X A ALEKS - Shasi... O CONFIDENCE INTERVALS AND HYPOTHESIS TESTL. Confidence interval for the population. Shasia v OOD OC The following data were randomly drawn from an approximately normal population. 17, 20, 25, 29, 33, 41, 44 (Send data to calculator (Send data to Excel Based on these data, find a 95% confidence interval for the population standard deviation. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to at least two decimal places. (If necessary, consult a list of formulas.) Lower limit: I ? Upper limit: O Explanation Ch. +Need help with the first two questions please. Included background infoYou are interested in finding a 95% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 13 randomly selected college students. Round answers to 3 decimal places where possible. 7 5 3 9 11 6 4 12 0 6 0 6 2 With 95% confidence the population mean number of days of class that college students miss is between ------- and ----------- days.The following data represent a portion of quarterly net sales (in $ millions) of Lowe's Companies, Inc., over five years. Net Sales 8861 10169 1 9984 Source: All data retrieved from Annual Reports for Lowe's Companies, Inc. Click here for the Excel Data File a-1. Estimate an exponential trend model with seasonal dummy variables. (Round your answers to 4 decimal places.) Year 2004 2004 2008 Intercept d1 d2 d3 t Variable Quarter 1 2 1 1 Se Exponential Trend A 1 Year 2 2004 3 2004 4 2004 5 2004 6 2005 7 2005 8 2005 9 2005 10 2006 11 2006 12 2006 13 2006 14 2007 15 2007 16 17 2007 2007 2008 18 19 2008 2008 20 21 2008 B Quarter 123-AWNA W NAWN-AW23 4 4 3 4 4 4 C Net Sales 8861 10169 9064 8550 9913 11929 10592 10808 11921 13389 11211 10406 12172 14167 11565 10379 12009 14509 11728 9984You are interested in finding a 99% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 15 randomly selected college students. Round answers to 3 decimal places where possible. 1 7 12 10 2 0 9 0 7 11 6 11 10 2 12 b. With 99% confidence the population mean number of days of class that college students miss is between ? and ? days. c. If many groups of 15 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of missed class days and about ? percent will not contain the true population mean number of missed class days.Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96立 In a survey of 2480 golfers, 15% said they were left-handed. The survey's margin of error was 3%. Construct a confidence interval for the proportion of left-handed golfers. O A. (0.11,0.19) O B. (0.18,0.21) OC. (0.12,0.15) O D. (0.12,0.18) Type here to search 13 20, Lock PgUp Home EnterSEE MORE QUESTIONS