An experiment consists of drawing a gum ball until a pink gumball is obtained. What is the sample space for this experiment? (The gum ball machine gives out red, purple, green, orange, or pink balls.)
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- Which of the following is a benefit of randomization when compared to repetition? A. Randomization takes more time B. Randomization allows for the variation due to machine setup to be captured C. Randomization requires resetting the equipment between tests D. Randomization is less complicated3. Discuss the basic procedure in making inferences on two samples and give a situation where you can apply it.List the sample space of the following experiments. 1. Tossing three coins 3. Drawing a spade from a deck of cards
- 1. Each customer entering a department store will either buy or not buy some merchandise. An experiment consists of following three customers and determining whether or not they purchase any merchandise. The number of sample points in this experiment is ---- --18 Records of a credit card company show that 30% of its cardholders over age 50 dispute one or more charges on their statements during the year. is selected. Assuming the records are correct, find the probability that: A random sample of 10 cardholders over age 5023. The Mum Water Company produces and distributes Mum bottled water in Bangladesh. The company wants to determine whether customers have a higher preference for its bottled water than for its main competitor, Fresh bottled water. The Mum Water Company hired a statistician to conduct this study. The statistician selected a random sample of 10 people and asked each of them to taste one sample of each of the two brands of water. The customers did not know the brand of each water sample. Also, the order in which each person tasted the two brands of water was determined randomly. Each person was asked to indicate which of the two samples of water he or she preferred. The following table shows the preferences of these 10 individuals. Page 1 of 2 Person Brand Preferred 1 Mum 2 Mum Mum 4 Mum 5 Mum Fresh 7 Mum Neither 9. Mum 10 Mum Based on these results, can the statistician conclude that people prefer the Mum brand of bottled water over the Fresh? Test at 5% significance level with…
- .Pick the Test (Z-test, Single Sample T-test, Independent Sample T-test, Paired Sample Ttest, ANOVA): Suppose that two brands of gasoline were being compared for mileage. Samples of each brand were used in identical cars under identical conditions. Nine tests were made of Brand I and six tests of Brand II. Are the two brands significantly different? Test:2. In a population it is estimated that 20% have a desired trait of interest for the researcher. The researcher wants to know how many people on average he has to draw from a population to get 2 people with the trait. Use rows 20-24 of the Random Number Table to carry out the simulation. Explain clearly how you set up the problem and report your findings. Answer:According to Mars, Incorporated, 20.5% of the M&M'S® Milk Chocolate Candies made at its Cleveland factory are orange. Assume that the company's claim is true. Suppose you take a random sample of 8 candies from a large bag of M&M'S. Let X = the number of orange candies you get. Orange M&M'S Mūnienie je interpret dine reguler d. Suppose that you get 4 orange M&M'S in your sample. Does this result provide convincing evidence that Mars's claim about its M&M'S is false? Justify your answer. Orange M&M'S a. Find and interpret the expected value of X. b. Find and interpret the standard deviation of X.
- This is an easy MCQLuonpea Reattempt this question dudnsanOus When you are done, click here to see a summary of your score Question with last attempt is displayed for your review only In a certain school district, it was observed that 34% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 118 out of 288 students are only children. The school district administrators want to know if the proportion of only children in the special program is significantly different from the proportion for the school district. Test at the o 0.01 level of significance What is the hypothesized population proportion for this test? 251 P = (Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol) Based on the statement of this problem, how many tails would this hypothesis test have? one-tailed test two-tailed test Choose the correct pair of hypotheses for this situation: (B) (A) |(C) Ho:…2. The following are the numbers of minutes it took random samples of 8 men (group 1) and 5 women (group 2) to complete a written test given for the renewal of their driver's licences Men : 9.9, 7.4, 8.9, 9.1, 7.7,9.7, 11.8, 9.2 Women : 8.6, 10.9, 9.8, 10.7, 9.4 Use a nonparametric test to decide whether to accept the null hypothesis µ1 Hz against the alternative µ1 # µz at 0.05 level of significance.
