Using Cochran's Formula, b) Using FPC for Proportions, and c) Yamane's Formula. d) Which among the three produced the highest number of samples?
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- Determine the sample size for the estimate of mean for the following:Cartons of Plaster are supposed to weigh exactly 32 ounces. Inspectors want to develop process control charts. They take five samples of six (5) boxes each and weigh them. Sample means (X-bar) are: 33.8, 34.6, 34.7, 34.1, and 34.2 respectively. Also, the corresponding ranges are: 1.1, 0.3, 0.4,0.7, and O.3, respectively. The lower and upper control limits of the R-chart are respectively O a. None is correct O b. O and 1.18 Oc. 0.03 and 1.18 Od. Oand 0.15 O e. 0.01 and 1.131. Calculate the water content (% by weight) of the sample.
- b) Given 10 P35:15 = = 0.07490, 435 = 0.35866, ä35 = 22.01926 and 35:10=8.67455, find the without using the CSO mortality table. Show your complete numerical value of calculation. PA 10 35:15Exercise Classification of arterial diastolic blood pressure (mm Hg) in adults, 18 years and older Diastolic blood pressure (mm Hg) Less than 85 85-89 90-104 105-114 Greater or equal to 115 Blood Pressure Classification Normal High normal Mild hypertension Moderate hypertension Severe hypertension Consider that blood pressure readings are obtained from nearly 200,000 participants in a a large-scale community blood pressure screening program, and that these measurements follow a normal distribution. The mean is 85 mm Hg, with a standard deviation of 13 mm Hg.B) For each sample, plot the data points on a scatter plot (by hand without drawing the line of best fit) and ensure to add the appropriate labels on the plot
- 1) In each study, the data collected is what level of measurement? a) Letter grade (A,B,C,D,F): [Select an answer b) Temperature in Celsius: [Select an answer c) Number of traffic tickets: [Select an answer d) Agreeableness rating on a Strongly Disagree/Disagree/Neither Disagree nor Agree/Agree/Strongly Agree scale: Select an answer e) Marital Status: Select an answer 2) Are the following variables discrete or continuous? a) A person's age: [Select an answer b) The number of cars served at a fast food drive-thru: [Select an answer c) The weight of an elephant: Select an answer > Next Question5) Which type of data is provided in the scenario given below? a.) neither accurate nor precise b.) accurate, but not precise c.) precise, but not accurate d.) precise and accurate16 Co 27 H 9. Question Details BONUS Round to nearest tenth Sample Answer: 4.2
- a programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99% confident that his estimate is in error by no more than three percentage points? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of computers with new operating systems. n = b) Assume that a recent survey suggests that about 98% of computers use a new operating system.n = c) Does the additional survey information from part (b) have much of an effect on the sample size that is required?In a recent survey of 157 WMU graduates, 117 students said that parking was too limited on campus. What is the estimate of the population proportion? What is the standard error of this estimate? Question 7 options: 1) Estimate of proportion: 0.745, Standard error: 0.0348. 2) Estimate of proportion: 0.255, Standard error: 0.0028. 3) Estimate of proportion: 0.745, Standard error: 0.0028. 4) The true population proportion is needed to calculate this. 5) Estimate of proportion: 0.255, Standard error: 0.0348.Heights of adult males are normally distributed. If a large sample of heights of adult males is randomly selected and the heights are illustrated in a histogram, what is the shape of that histogram? A)Uniform B)Longer tail to the right C)Bell-shaped D)Longer tail to the left