Which of the following is the point estimate (i.e., "best guess") for the population proportion of all U.S. households today that have pets? 0 0 0 p = 0.69 p = p = 0.69 p 234 = 0.72 325 = 234 325 = 0.72 p-value = 0.69 p-value = 234 325 = 0.72

When computing a 95% CI for a population mean, the ____ is used as the point estimate.     Sample Mean     SEM     UB or LB     T-value for the middle 95% of all possible t-values

Complete part C. C. Compute an estimate of the population parameter.  Telephone survey of 2980 adults in certain country, 27% reported they own least one gun. Researchers want to estimate the true percentage of adults in that country that own at least one gun.

A polling company reported that 19% of 1018 surveyed adults said that secondhand smoke is "quite annoying." Complete parts (a) through (d) below. a. What is the exact value that is 19% of 1018? The exact value is. (Type an integer or a decimal.)

(a) Determine the population mean pulse. The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). The population mean pulse is approximately beats per minute. (Round to one decimal place as needed.) Student Pulse O Perpectual Bempah 76 Megan Brooks Jeff Honeycutt 80 85 Clarice Jefferson 75 Crystal Kurtenbach 60 Janette Lantka 64 Kevin McCarthy 79 Tammy Ohm 80 Kathy Wojdya 84

In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in statistical polling is the margin or error- the largest (reasonable) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%). In a made up poll, the proportion of people who like dark chocolate more than milk chocolate was 44% with a margin of error of 1.3%. Describe the conclusion about p using an absolute value inequality.

According to the CDC, only 20% of Americans get enough exercise each week. You conduct a survey of 200 people and find 45 who get enough exercise. a. What is the parameter? A. The proportion of people in the survey who get enough exercise. B. The proportion of all Americans who get enough exercise. C. All Americans. D. The people in the survey. E. All Americans who get enough exercise. b. What is the numerical value of the parameter? (If your answer is a proportion, enter it as a number between 0 and 1. If the numerical value is not known, enter “NA” without the quotes.) c. What is the statistic? A. All Americans who get enough exercise. B. The people in the survey. C. The proportion of people in the survey who get enough exercise. D. The proportion of all Americans who get enough exercise. E. The people in the survey who get enough exercise.d. What is the numerical value of the statistic? (If your answer is a proportion, enter it as a number between 0 and 1. If the numerical value is…

The arithmetic mean for age in this sample is ______________________.   Question 10 options:   62.70   64.00   65.46   66.49

Statistics Question

(a) Determine the population mean pulse. The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). The population mean pulse is approximately beats per minute. (Round to one decimal place as needed.) Student Pulse O Perpectual Bempah 81 Megan Brooks Jeff Honeycutt 75 75 Clarice Jefferson 84 Crystal Kurtenbach 90 Janette Lantka 71 Kevin McCarthy 67 Tammy Ohm 71 Kathy Wojdya 85