H0: p> 0.9 H1: p< 0.9 Based on a sample of 600 people, 83% owned cats The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals)

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Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 281 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a=0.1 level of significance. *** Because npo (1-Po) = 199.7 less than 5% of the population size, and the sample can be reasonably assumed to be random, the 10, the sample size is requirements for testing the hypothesis are satisfied. (Round to one decimal place as needed.) D What are the null and alternative hypotheses? Ho versus H₁ (Type integers or decimals. Do not round.) Help me solve this View an example Clear all Check answer Type here to search O 1:12 PM 6/18/2022 3 1 7 Q 2 @ 7 S E C $ 4 R 06 5 T S B 6 Get more help - 18 H & N 8 M hp K a O a P 12 (?) prt sc 94°F Mostly…

A sample of 2600 people were asked if they felt "good" about the economy. A 95% CI for the proportion who answer 'yes' is: 0.54 < p < 0.62 Many textbooks use the symbol p for the sample proportion. What is p in this problem? Submit Question Previous

You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you​ survey? Assume that you want to be 90​% confident that the sample percentage is within 4.54.5 percentage points of the true population percentage. Complete parts​ (a) and​ (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats.   nequals=334 ​(Round up to the nearest​ integer.) b. Assume that a prior survey suggests that about 31​% of air passengers prefer an aisle seat.   nequals=nothing ​(Round up to the nearest​ integer.)

Lauren is a college sophomore majoring in business. This semester Lauren is taking courses in accounting, economics, management information systems, public speaking, and statistics. The sizes of these classes are, respectively, 380, 60, 25, 70, and 65. (a) Find the mean and the median of the class sizes. Mean Median (b) What is a better measure of Lauren's "typical class size-the mean or the median? Median O Mean

ind the number of successes x suggested by the given​ statement:   From a​ CNN/USA Today/Gallup​ poll: Among 1299   survey​ subjects, 13.7 ​% say that the opinion of a celebrity would influence their own opinion. x​ = nothing   ​(round off to a whole​ number)