A bag contains 10 blue coins and 3 red coins. A coin is removed at random and replaced by three of the other color. Part 1 What is the probability that the removed coin is blue? Enter your answer as a simplified fraction. The probability that the removed coin is blue is Part 2 If the first coin removed is blue, what is the probability of drawing a red coin after three red coins are put in the bag to replace the blue one? The probability of drawing a red coin after three red coins are put in the bag to replace the blue one that has been removed is Part 3 out of 3 If instead the first coin removed is red, what is the probability of drawing a red coin after the three blue coins are put in the bag to replace the red one? The probability of drawing a red coin after the three blue coins are put in the bag to replace the red one that has been removed is

55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Listed below are time intervals (min) between eruptions of a geyser. assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. do not assume that the population standard deviations are equal. does it appear that the mean time interval has changed? is the conclusion affected by whether the significance level is 0.10 or 0.01? recent 78 90 90 79 57 101 62 87 71 87 81 84 57 80 74 103 62 past 88 89 93 94 65 85 85 92 87 91 89 91 follow the steps of hypothesis testing, including identifying the alternative and null hypothesis, calculating the test statistic, finding the p-value, and making a conclusions about the null hypothesis and a final conclusion that addresses the original claim. use a significance level of 0.10. is the conclusion affected by whether the significance level is 0.10 or 0.01? answer choices below: a) yes, the conclusion is affected by the significance level because h0 is rejected when the significance level is 0.01 but is not rejected when the significance level is 0.10. b) no, the conclusion is not affected by the significance level because h0 is not rejected regardless of whether a significance level of 0.10 or 0.01 is used. c) yes, the conclusion is affected by the significance level because h0 is rejected when the significance level is 0.10 but is not rejected when the significance level is 0.01. d) no, the conclusion is not affected by the significance level because h0 is rejected regardless of whether a significance level of 0.10 or 0.01 is used.