Consider the following random sample of diameter measurements (in inches) of 19 softballs. 4.89, 4.73, 4.72, 4.83, 4.7, 4.68, 4.77, 4.9, 4.86, 4.7, 4.76, 4.76, 4.86, 4.9, 4.73, 4.8, 4.72, 4.72, 4.68 Send data to Excel Send data to calculator If we assume that the diameter measurements are normally distributed, find a 99% confidence interval for the mean diameter of a softball. Then find the lower limit and upper limit of the 99% confidence interval.

A government agency computed the proportion of U.S. residents who lived in each of four geographic regions in a particular year. Then a simple random sample was drawn of 1000 people living in the United States in the current year. The following table presents the results. Region Past YearProportion ObservedCounts Northeast 0.171 150 Midwest 0.245 235 South 0.357 398 West 0.227 217 Send data to Excel Can you conclude that the proportions of people living in the various regions changed between the current year and the past year? Use the 0.05 level of significance and the P-value method with the TI-84 Plus calculator.   What the P value?

Consider a sample with data values of 10, 20, 15, 16, and 18. Compute the range and interquartile range.

Fund the mean and variance for the following sample data 12, 16, 11, 23, 9, 17, 12, 25

Consider the following data: 5,−5,5,−5,−5,14,55,−5,5,−5,−5,14,5 Copy Data Step 1 of 3 :   Calculate the value of the sample variance. Round your answer to one decimal place.

The length of fish were measured at 3 different lakes.  Lake 1:  3.5, 4.2, 6.1, 5.2 Lake 2: 3.1, 3.2, 4.3, 2.1 Lake 3: 5.6, 7.1, 4.4, 4.1, 6.2 Is there evidence to suggest that the average length is not the same at all 3 locations? Group of answer choices There is not evidence to suggest the average length of fish is different at one of the lakes. There is evidence to suggest that the average length is different at one of the lakes.   Enter the test statistic (to 4 decimal places)

Consider a sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25. Compute the 19th, 24th, 65th, and 75th percentiles. If needed, round your answers to two decimal digits. Percentile Value 19% 24% 65% 75%

The numbers of regular season wins for 10 football teams in a given season are given below.   Determine the​ range, mean,​ variance, and standard deviation of the population data set.   2​, 10​, 15​, 4​, 14​, 10​, 12​, 10​, 3​, 9

please complete the blank problem and or ones with a red x next to it not ones with a green check next to please

Consider sample data with x = 39 and s = 4.Compute the coefficient of variation. Round to two decimal places. ?%