Salaries of 45 college graduates who took a statistics course in college have a mean, x, of $68,500. Assuming a standard deviation, a, of $12,981, construct a 90% confidence interval for estimating Kthe population mean μ. Q A Click here to view at distribution table Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. $<<$(Round to the nearest integer as needed.) N @ 2 *: W S # 3 80 F3 E D 4 X C R F 25 % V T G 6 B P F6 Y H & 7 7 N 8: U 8 DII FB M 9 J K V DD FO O 0 L d F10 P | Time Remaining: 01:16:25 di F11 { ? 1 + 11 4) F12 } Question Viewer Next delete 1 return shift
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- A woman insists that she will never marry a man as short as or shorter than she, knowing that only one man in 5000 falls into this category. Assuming a mean height of 70 inches for men with a standard deviation of 2.4 inches (and a normal distribution), approximately how tall is this woman? Click the icon to view the z-scores and percentiles table. O z-Scores and Percentiles Table This woman is inches tall. (Round to the nearest whole number as needed.) z-Scores and Percentiles z-Score Percentile z-Score Percentile z-Score Percentile z-Score Percentile -4.0 0.003 -1.0 15.87 0.0 50.00 1.1 86.43 -3.5 0.02 -0.95 17.11 0.05 51.99 1.2 88.49 -3.0 0.13 -0.90 18.41 0.10 53.98 1.3 90.32 -2.9 0.19 -0.85 19.77 0.15 55.96 1.4 91.92 -2.8 0.26 -0.80 21.19 0.20 57.93 1.5 93.32 -2.7 0.35 -0.75 22.66 0.25 59.87 1.6 94.52 -2.6 0.47 -0.70 24.20 0.30 61.79 1.7 95.54 -2.5 0.62 -0.65 25.78 0.35 63.68 1.8 96.41 -2.4 0.82 -0.60 27.43 0.40 65.54 1.9 97.13 -2.3 1.07 -0.55 29.12 0.45 67.36 2.0 97.72 -2.2 1.39…Salaries of 42 college graduates who took a statistics course in college have a mean, x of $68,700. Assuming a standard deviation, o, of $18,646, construct a 90% confidence interval for estimating the population mean u. Click here o view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. $<μ<$ (Round to the nearest integer as needed.)For the standard normal curve, find the z-score that corresponds to the third quartile. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. O A. 0.77 B. - 0.23 O C. -0.67 O D. 0.67
- An insurance company is looking over accident statistics. They want to model the population of all drivers for the population parameter of the standard deviation and variance of the age of the driver involved in an automobile accident. They have a sample of 100 accidents from around the country. The age of the driver in each of these accidents is provided below. Use Excel to calculate the sample standard deviation and the sample variance. Round your answers to one decimal place. Do not round until you've calculated your final answer "Age of people in accident"48643346436728189044472440202747683248472248217347302918487364454920205066654187873417203176493089672222455023481746382942254720463119214227226621236675744621461969202048238851284918204522313823284939 Standard deviation: Variance:Salaries of 47 college graduates who took a statistics course in college have a mean, x, of $62,900. Assuming a standard deviation, o, of $13,976, construct a 99% confidence interval for estimating the population mean u. Click here to view at distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table.Salaries of 39 college graduates who took a statistics course in college have a mean, x, of $64,800. Assuming a standard deviation, ơ, of $13,783, construct a 95% confidence interval for estimating the population mean µ. Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. ..... $>1> <µ< $ (Round to the nearest integer as needed.) %24Salaries of 43 college graduates who took a statistics course in college have a mean, x, of $66,900. Assuming a standard deviation, o, of $12,687, construct a 90% confidence interval for estimating the population mean u. Click here to viewat distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. SSalaries of 32 college graduates who took a statistics course in college have a mean, x, of $61,600. Assuming a standard deviation, o, of $11,936, construct a 99% confidence interval for estimating the population mean p. Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. ..... $ <µ < $ (Round to the nearest integer as needed.)The mean exam score for 45 male high school students is 23.5 and the population standard deviation is 5.4. The mean exam score for 54 female high school students is 20.1 and the population standard deviation is 4.6. At a = 0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. O D. Male high school students have greater exam scores than female students. What are Ho and H? O A. Ho: H1 > H2 Ha: H1 SH2 O B. Ho: H1 #H2 Hạ: H1 =H2 O C. Ho: H1 SH2 Hạ: H1 > H2 O D. Ho: H12H2 Ha: H1A data set includes 106 body temperatures of healthy adult humans having a mean of 98.9°F and a standard deviation of 0.63°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view a t distribution table. LOADING... Click here to view page 1 of the standard normal distribution table. LOADING... Click here to view page 2 of the standard normal distribution table. LOADING... Question content area bottom Part 1 What is the confidence interval estimate of the population mean μ? enter your response here°F<μ<enter your response here°F (Round to three decimal places as needed.)Salaries of 38 college graduates who took a statistics course in college have a mean, x, of $65,900. Assuming a standard deviation, o, of $14,369, construct a 95% confidence interval for estimating the population mean μ. Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. <μ<$ (Round to the nearest integer as needed.)Salaries of 43 college graduates who took a statistics course in college have a mean, x, of $60,100. Assuming a standard deviation, o, of $14,135, construct a 95% confidence interval for estimating the population mean u. Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. $1 |<µ< $ (Round to the nearest integer as needed.)SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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