A recent study reported that 56% of the children in a particular community were overweight or obese. Suppose a random sample of 200 public school children is taken from this community. Assume the sample was taken in such a way that the conditions for using the Central Limit Theorem are met. We are interested in finding the probability that the proportion of overweight /obese children in the sample will be greater than 0.51.

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Number 9
A recent study reported that 56% of the children in a particular community were overweight or
obese. Suppose a random sample of 200 public school children is taken from this community.
9.
Assume the sample was taken in such a way that the conditions for using the Central Limit
Theorem are met. We are interested in finding the probability that the proportion of overweight
/obese children in the sample will be greater than 0.51.
10. The mean age of all 617 used cars for sale in a newspaper one Saturday last month was 7.8
years, with a standard deviation of 7.6 years. The distribution of ages is right-skewed. For a
study to determine the reliability of classified ads, a reporter randomly selects 50 of these used
cars. What is the probability that in his sample the mean age of the cars was higher than 8
years?
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Transcribed Image Text:A recent study reported that 56% of the children in a particular community were overweight or obese. Suppose a random sample of 200 public school children is taken from this community. 9. Assume the sample was taken in such a way that the conditions for using the Central Limit Theorem are met. We are interested in finding the probability that the proportion of overweight /obese children in the sample will be greater than 0.51. 10. The mean age of all 617 used cars for sale in a newspaper one Saturday last month was 7.8 years, with a standard deviation of 7.6 years. The distribution of ages is right-skewed. For a study to determine the reliability of classified ads, a reporter randomly selects 50 of these used cars. What is the probability that in his sample the mean age of the cars was higher than 8 years? >> 9:28 AM Desktop 50°F Sunny 11/8/2021 LL F12 PrtScr Insert Delete PgUp Hom 23 Num Lock Backspace
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