Mathematics, 13.11.2019 17:31 ayoismeisjuam
Astudy of 138 penalty shots in world cup finals games between 1982 and 1994 found that the goalkeeper correctly guessed the direction of the kick only 41% of the time. the article notes that this is "slightly worse than random chance." we use these data as a sample of all world cup penalty shots ever. test at a 5% significance level to see whether there is evidence that the percent guessed correctly is less than 50%. the sample size is large enough to use the normal distribution. the standard error from a randomization distribution under the null hypothesis is se = 0.043. let p represent the proportion of all world cup penalty kicks for which the goalkeeper correctly guesses the direction of the kick.
a. state hypotheses in terms of a single proportion p.
b. write the value of the sample statistic, using correct notation. use the sample statistic and the standard error provided to calculate a z-statistic. show your calculation.
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Mathematics, 21.06.2019 16:50
Its worth 10000000 points need asap if you answer correctly ill mark brainliest
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Mathematics, 21.06.2019 19:30
Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics
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Mathematics, 21.06.2019 21:30
Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?
Answers: 3
Astudy of 138 penalty shots in world cup finals games between 1982 and 1994 found that the goalkeepe...
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