is the proportion of men who wetter a shopping list For #46-57, MATCHING: Read e
ID: 3323714 • Letter: I
Question
is the proportion of men who wetter a shopping list For #46-57, MATCHING: Read each situation and tino right. Letters may be used more than once, or not at all. 46. A biologist wants to estimate the proportion of all people with the ability to roll their tongue. A. Confidence Interval for One Proportion B. Hypothesis Test for One Proportion C. Confidence Interval for One Mean D. Hypothesis Test for One Mean E. Correlation/Regression F. Confidence Interval or a Hypothesis Test 47. A meteorologist wants to estimate mean annual rainfall for LA 48. A medical researcher want to determine if the distribution of blood types for a particular ethnic group is 50% O, 25% A, 20% B, and 5% type AB. 49. Students wanted to see if Chips Ahoy really contained at least 1000 chips per 18- ounce bag of cookies, on average. for a Mean Difference of Paired Data 50. IBM marketers want to estimate the difference between the mean computer use time by teens per day and the mean computer use time by adults over age 20 per day Confidence Interval or a Hypothesis Test for Two Proportions G. Confidence Interval or a Hypothesis Test for Two Means H. 51. A hotel operator needs to know if installing a new air conditioner reduced the bacteria in the air, He measured the bacteria in the air of 20 rooms before and after the new air conditioner was installed 1·Chi-Square Test for Independence 52. A corporation operating a chain of J. Chi-Square Goodness of Fit Test many hotels wants to know if there is any difference in the average amount of energy being consumed at each hotel. K. ANOVA 53. Researchers hope to predict the number of foals born to wild horses based on the number of adults in the herd 54. Health workers want to know if the average number of cavities per child is smaller in communities that add fluoride to the water compared to communities that do not. 55. An automobile manufacturer wants to estimate the average cost of repairs for collisions that occur at speeds less than 30 mph. 56. Of dieters that are trying to lose weight, a health organization wants to know if a majority are following a low-carb diet 57. Students were asked to perform an arithmetic task in a quiet room and again with distractions in an effort to determine if there is a difference in the mean accuracy with which the task is performed.Explanation / Answer
Solution:-
46) A) Confidence interval for one proportion.
47) C) Confidence interval for one mean.
48) J) Chi square test for goodness of fit
49) D) Hypothesis test for one mean.
50) H) Confidence interval or hypothesis test for two mean.
51) F) Confidence interval or hypothesis test for two mean of paired means.
52) K) Anova
53) E) Correlation/Regresison
54) H) Confidence interval or hypothesis test for two mean.
55) E) Correlation/Regresison
56) A) Confidence interval for one proportion.
57) F) Confidence interval or hypothesis test for two mean of paired means.
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