Suppose A Statistician Working For Cineplex Inc Wants To See If The Proportion Of People Who Went To Theatres To Watch 1 (90.88 KiB) Viewed 104 times
Suppose A Statistician Working For Cineplex Inc Wants To See If The Proportion Of People Who Went To Theatres To Watch 2 (109.67 KiB) Viewed 104 times
Suppose a statistician working for Cineplex Inc. wants to see if the proportion of people who went to theatres to watch Avengers: Infinity War (in 2018) is the same for 8 selected large cities in Canada. The statistician took a random sample of people who went to theatres from each of the 8 selected large cities, resulting in 209 total people, and counted how many of them watched this particular movie at the theatre in 2018. After carrying out an appropriate hypothesis test, she found a test statistic of 16.0. What is the distribution of this test statistic under the null hypothesis and what is the appropriate P-value range for the test? Select one: - OF-distribution with df, = 7 and df = 201;0.025 < P-value < 0.05 O Chi-square distribution with df = 7; 0.025 < P-value < 0.05 OF-distribution with df = 7 and df2 = 201; 0.05 < P-value < 0.10 O Chi-square distribution with df 7; 0.05 < P-value < 0.10 O t-distribution with df 7; P-value > 0.10
An 86% confidence interval for the average lifespan (in years) of house cats in a particular country is (5.9. 18.1). Which of the following statements is TRUE? Select one: O If we took many random samples of house cats, about 86% of the samples would produce confidence intervals that contain the true population mean lifespan. O We are 86% sure that the lifespan of a randomly selected cat is between 5.9 and 13.1 years. O if a larger sample size was taken and an 86% confidence interval was recalculated, the confidence interval would most likely be wider than the one given in the question. O Based on this confidence interval, the margin of error is 7.2 years, and the sample mean is 9.5 years. O If we took many random samples of house cat lifespans, about 86% of the samples would produce this confidence interval.
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