We wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adult residents sampled, 58 had kids. Based on this, construct a 95% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places. __________< p <_________  Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places. p = _______ ± ___________

For some data, we know the range R of the data is 12 and its median is 6. Find Estimated Lowest Number, and Estimated Highest Number for this data. Give you answers in the same order asked.

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The organization of the Girl Scouts has completed its annual cookie drive. The sales are reported in the accompanying ogive.   Approximate the percentage of girls who sold more than 70 boxes of cookies.

Please solve for A, B, and C

A recent study evaluated how addicted teenagers become to nicotine once they start smoking. The response variable was the number of yes answers on a questionnaire called the Hooked on Nicotine Checklist (HONC). Of teenagers who had tried tobacco, the mean HONC score was 4.2 (s = 5.4) for the 149 females and 2.8 (s=4.2) for the 190 males. Complete parts a through c below. 000 DOD F4 What does the standard error indicate? A. The standard error describes the spread of the sampling distribution of x₁ - x₂. B. The standard error is the standard deviation of the difference between x₁ - x₂. OC. The standard error is the standard deviation of the sample for this study. OD. The standard error is the difference in standard deviations for the two populations. ... b. Find the test statistic and P-value for Ho: H₁ H₂ and Ha: H₁ H₂. Interpret, and explain what (if any) effect gender has on the mean HONC score. Use the significance level 0.05. The test statistic is (Round to two decimal places as…

Complete the following statements. In general, % of the values in a data set lie at or below the median. % of the values in a data set lie at or below the third quartile (Q3). If a sample consists of 900 test scores, quartile (Q2). If a sample consists of 900 test scores, quartile (Q1). of them would be ot or below the second of them would be ot or above the first

Need help with ONLY g and H. First image is to provide context

The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A Bank B 6.4 4.2 6.6 5.4 6.7 5.7 < 6.8 6.2 7.1 6.7 Click the icon to view the table of Chi-Square critical values. 7.3 7.7 7.5 7.7 Construct a 95% confidence interval for the population standard deviation o at Bank A. min < Bank A min (Round to two decimal places as needed.) 7.9 8.5 7.9 9.3 7.9 10.0 Question Viewer ho

your car is more crowded than you think.  table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.