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Question: a food marketing institute found that 46 of households spend...

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A Food Marketing Institute found that 46% of households spend more than $125 a week on groceries. Assume the population proportion is 0.46 and a simple random sample of 76 households is selected from the population. What is the probability that the sample proportion of households spending more than S125 a week is more than than 0.38 Note: You should carefully round any z-values you calculate to 4 decimal places to match wamaps approach and calculations Answer 1,00000 (Enter your answer as a number accurate to 4 decimal places.)
A leading magazine (like Barrons) reported at one time that the average number of weeks an individual is unemployed is 38 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 38 weeks and that the population standard deviation is 6 weeks. Suppose you would like to select a random sample of 35 unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is less than 39. P(X < 39)-(0.39490 Find the probability that a sample of size n = 35 is randomly selected with a mean less than 39. P(M <39)-| 0.0220 |& Enter your answers as numbers accurate to 4 decimal places.
A leading magazine (like Barrons) reported at one time that the average number of weeks an individual is unemployed is 35 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 35 weeks and that the population standard deviation is 3.1 weeks. Suppose you would like to select a random sample of 87 unemployed individuals for a follow-up study Find the probability that a single randomly selected value is greater than 35.3. P(X> 35.3)-C O (Enter your answers as numbers accurate to 4 decimal places.) Find the probability that a sample of size n P(M> 35.3)- 87 is randomly selected with a mean greater than 35.3. (Enter your answers as numbers accurate to 4 decimal places.)
A leading magazine (like Barrons) reported at one time that the average number of wek n rd. is 32.9 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 32.9 weeks and that the population standard deviation is 8.6 weeks. Suppose you would like to select a random sample of 143 unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is between 31.5 and 32.8 P31.5X32.8)- 0,0600 Find the probability that a sample of size n 143 is randomly selected with a mean between 31.5 and 32.8. P( 31.5< M< 32.8)-0.3267 Enter your answers as numbers accurate to 4 decimal places.
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