The table contains prices from two companies, one on the east coast and one on the west coast, for specific fish types. Find a 90% confidence interval for the mean difference in wholesale price between the east coast and west coast suppliers. Round your answers to three decimal places, and use four decimal places for any interim calculations. You can use R to get the summary statistics, but you can also solve this problem by hand using skills from univariate summaries. Wholesale Prices of Fish in Dollars Fish East Coast 18.49 6 18.99 24.45 30.49 29.15 21.55 29.5 30.49 Cod Tilapia Farmed Salmon Organic Salmon Grouper Fillet Tuna Swordfish Sea Bass Striped Bass West Coast 19.49 6 23.99 31.45 28.49 36.15 22.55 36.5 33.49 % confidence, it can be said that the true mean difference in wholesale price between the and $ With east coast and west coast suppliers is between $

The original data set is in the picture and the question parts needs to be answered as well for the original data set. Read and answer carefully and correctly.   Compute the mean, median, and mode for the data. Show your complete work.    (b) Compute a 5% trimmed mean for the data, and compare it with the mean computed in part (a). Does the trimmed mean more accurately reflect the general level of the daily rental costs?   If 5 will be added to each cost of condominiums, what will be the mean, median and mode?   If each cost of condominium will be added by 10 and multiplied by 2, what will be the mean, median and mode?

Three students, Linda, Tuan, and Javier, are given five laboratory rats each for a nutritional experiment. Each rat's weight is recorded in grams. Linda feeds her rats Formula A, Tuan feeds his rats Formula B, and Javier feeds his rats Formula C. At the end of a specified time period, each rat is weighed again, and the net gain in grams is recorded. Using a significance level of 10%, test the hypothesis that the three formulas produce the same mean weight gain. (Let 1 = Linda's rats, 2 = Tuan's rats and 3 = Javier's rats.) Weights of Student Lab Rats Linda's rats Tuan's rats Javier's rats 43.0 46.9 51.1 38.5 40.1 40.4 40.7 38.4 37.1 45.8 45.7 44.8 37.8 43.6 47.7 Part (a) State the null hypothesis. H0: ?1 = ?2 = ?3 H0: At least two of the group means ?1, ?2, ?3 are not equal.      Part (b) State the alternative hypothesis. Ha: ?1 = ?2 = ?3 Ha: At least two of the group means ?1, ?2, ?3 are not equal.      Part (c) Enter an exact number as an…

On occasion, medical studies need to model the proportion of the population that has a disease and compare that to observed frequencies of the disease actually occurring. Suppose the end-stage renal failure in south-west Wales was collected for different age groups. Do the data in the table show that the observed frequencies are in agreement with proportion of people in each age group? Test at the 1% level. Renal Failure Frequencies Age group 16-29 30-44 45-59 60-74 75+ Total Observed Frequencies 125 152 134 124 48 583 Expected Proportion 0.23 0.25 0.22 0.21 0.09   State the hypotheses.H0: The observed frequencies     in agreement with proportion of people in each age group.Ha: The observed frequencies     in agreement with proportion of people in each age group. Calculate the χ2 test statistic. Round expected values to two decimal places. Round χ2 to 3 decimal places.χ2 =  Calculate the p-value. Round to 3 decimal places.p-value =  State your decision.Since p-value     α,…