Question
1 , Use ONLY the Standard Normal Tables (Link) to answer the following... For azvalue of -1.29, what is the probability,P(z <1.29)? Answer =(round to
1, Use ONLY the Standard Normal Tables (Link) to answer the following...
For azvalue of -1.29, what is the probability,P(z<1.29)?
Answer =(round to four decimal places)
Note: Be careful...only use theZ Tablehere...do not use technology or the 68-95-99.7 Rule.
2, Use ONLY the Standard Normal Tables (Link) to answer the following...
For az value of -0.3, what is the probability,P(z>0.3)?
Answer =(round to four decimal places)
Note: Be careful...only use theZ Tablehere...do not use technology or the 68-95-99.7 Rule.
3, Use ONLY the Standard Normal Tables (Link) to answer the following...
Forz values of 0.83 and 3.06, what is the probability,P(0.83 Answer =(round to four decimal places) Hint:IMPORTANT: Be careful...only use the Z Table here (see link above)...do not use technology or the 68-95-99.7 Rule. 4, Use ONLY the Standard Normal Tables (Link) to answer the following... A set of exam scores is normally distributed and has a mean of 77.9 and a standard deviation of 8.4. What is the probability that a randomly selected score will be less than 71? Answer =(round to four decimal places) Note: Be careful...only use theZ Tablehere and round z scores to two places since that's what the table uses...do not use technology or the 68-95-99.7 Rule. 5, Use ONLY the Standard Normal Tables (Link) to answer the following... A set of exam scores is normally distributed and has a mean of 81.2 and a standard deviation of 10. What is the probability that a randomly selected score will be greater than 67.2? Answer =(round to four decimal places) Note: Be careful...only use theZ Tablehere and round z scores to two places since that's what the table uses...do not use technology or the 68-95-99.7 Rule. 6, Use ONLY the Standard Normal Tables (Link) to answer the following... A set of exam scores is normally distributed and has a mean of 73.7 and a standard deviation of 9.2. What is the probability that a randomly selected score will be between 74 and 78? Answer =(round to four decimal places) Note: Be careful...only use theZ Tablehere and round z scores to two places since that's what the table uses...do not use technology or the 68-95-99.7 Rule. 7, Use ONLY the Standard Normal Tables to answer the following. Suppose you know that the probability,P(z Answer =(round to four decimal places) Note: Be careful. Only use the Z Table here. Do not use technology or the 68-95-99.7 Rule. Hint:You can get your answer right off the Normal Z Table. 8, Use ONLY the Standard Normal Tables (Link) to answer the following... Suppose you know that the probability,P(z>x)=0.305. What is the value ofx? Answer =(round to four decimal places) Note: Be careful...only use theZ Tablehere...do not use technology or the 68-95-99.7 Rule. Hint:Notice the direction of the probability! 9, Use ONLY the Standard Normal Tables (Link) to answer the following... A set of exam scores is normally distributed and has a mean of 73 and a standard deviation of 7.4. You choose a random score from the data set and the probability of getting a score less than or equal to this is 0.4483. What was the test score you randomly chose? Answer =(round to THREE decimal places) Note: Be careful...only use theZ Tablehere...do not use technology or the 68-95-99.7 Rule. Hint:Start by finding the appropriatezscore 10, A random experiment involves drawing a sample of 12 data values from a normally distributed population. 15,19,22, 22,26,26, 34,35,41, 41,42,43, Calculate thez-score of the medianof the data set. Answer: z =(Round to 3 decimal places) Hint:You will need the mean and standard deviation first. Round your mean and standard deviation calculations to 4 decimal places.
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