applied statistics and probability how do you find the values of P(Z<8.4) and P(Z<-14.93) on z table
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applied statistics and probability
how do you find the values of P(Z<8.4) and P(Z<-14.93) on z table?
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- 5:02 A professor has recorded exam grades for 10 students in his class, but one of the grades is no longer readable. If the mean score on the exam was 80 and the mean of the 9 readable scores is 85, what is the value of the unreadable score? The value of the unreadable score is 53 ||| = VO) 1 2 ... 46 ... - 16% OApplication of The Central Limit Theorem for Sums 100 North Main Street is the tallest building in Winston-Salem, NC standing at 460ft tall (5520inches). Use the scenario above to determine the selected probabilities below. You may wish to use the Normal Distribution Calculator hosted by the University of lowa's Department of Mathematical Sciences. Remember: the formatting of this calculator may vary slightly from what is used in class. (link: Normal Distribution Calculator) a. Given that the heights of American women follow the distribution N(65, 3.5), what is the probability of that a random sample of 85 women, stacked head-to-foot, would be at least as tall as 100 North Main Street? P(ΣΧ Σ 5520) x (Include three decimal places.) 0.614 b. Determine the z-score of EX 5520 for a sample of 85. = Z -0.289 X (Include three decimal places.)Hypothesis Test - Population ProportionThe percentage of Texans not covered by health care insurance in 2019 was 15%. Let p denote the proportion of those not covered by health care insurance in Texas. We would like to test the hypotheses H₀ : p ≤ 0.15 vs. Ha : p > 0.15 using a random sample of 100 Texans. The percentage of those who do not have health care insurance in the sample is 20%. What is the value of the test statistic? 0.95 1.4 1.25 2.25
