14) I want to find the mean weight of adult male deer in Essex County. How...
14) I want to find the mean weight of adult male deer in Essex County. How large a sample will be needed, if I want to be accurate to within 5 pounds at the 95% confidence level? Assume the standard deviation is 25 pounds.
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14) I want to find the mean weight of adult male deer in Essex
County. How...
a) Suppose that the weight of the adult male wombat is normally distributed with mean 8,6...
a) Suppose that the weight of the adult male wombat is normally distributed with mean 8,6 pounds and standard deviation 1.1 pounds. What is the probability that a randomly selected adult male wombat will weigh at least 9.5 lbs? Rounded to the nearest.01 pound, what is the 85th percentile of adult male wombat weight? A sample of 50 wombats is chosen. What is the probability that its mean is less than 8.3 pounds? To conduct a new study to find...
1)Studies indicate that the Mean weight of adult men in this county is 189.6 lb with...
1)Studies indicate that the Mean weight of adult men in this county is 189.6 lb with a Standard Deviation 40.1 lb. If a man is selected at random, what is the probability that his weight is between 173 and 200 lb? 2) Studies indicate that the mean height of women is 63.7 with a standard deviations of 2.7 in. If a woman is selected at random, what is the probability that she is 69 inches tall or taller? 3) Given...
A sample of 8 adult elephants had an average weight of 12,300 pounds. The standard deviation...
A sample of 8 adult elephants had an average weight of 12,300 pounds. The standard deviation for the sample was 22 pounds. Find the 95% confidence interval of the population mean for the weights of adult elephants.
4) The weights in kilograms (kg) of wealthy adult female deer (doe) from Mesa Verde Park...
4) The weights in kilograms (kg) of wealthy adult female deer (doe) from Mesa Verde Park are normally distributed with a mean of 63 kg and a population standard deviation of 7.1kg. a) What is the probability that a single doe captured at random weighs less than 54kg? b) In a random sample of 50 doe are selected, what is the probability that a doe will weigh more than 65 kg? c) If the probability is 0.1515 that a doe...
A random sample of 45 adult elephants had the sample mean weight of 12,240 pounds and...
A random sample of 45 adult elephants had the sample mean weight of 12,240 pounds and the sample standard deviation of 450 pounds. A random sample of 80 adult hippos had the sample mean weight of 5,700 pounds and the sample standard deviation of 400 pounds. Assume that the two populations are approximately normally distributed. A zoologist claims that the difference between the overall weights of adult elephants and adult hippos is 6,300 pounds, however others believe the difference must...
An elevator has a placard stating that the maximum capacity is 1610 lb — 10 passengers. So, 10 adult male passengers can have a mean weight of up to 1610/10=161 pounds. If the elevator is loaded with 10 adult male passengers, find the probability that i
An elevator has a placard stating that the maximum capacity is1610 lb—10 passengers. So,10 adult male passengers can have a mean weight of up to1610/10=161 pounds. If the elevator is loaded with10 adult male passengers, find the probability that it is overloaded because they have a mean weight greater than161 lb. (Assume that weights of males are normally distributed with a mean of170 lb and a standard deviation of32 lb.) Does this elevator appear to be safe?A) The probability the...
Assume that you want to construct a 95% confidence interval estimate of a population mean. Find...
Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. The sample standard deviation is given below. Margin of error =$5,standard deviation=$25 The required sample size is ????? (Round up to the nearest whole number as needed.)
A sample of 25 adult elephants had a mean weight of 9500 pounds with a sample...
A sample of 25 adult elephants had a mean weight of 9500 pounds with a sample standard deviation of 150 pounds. The population distribution is normal. The margin of error for 99% confidence interval calculation is equal to: a, 61.9 b. 77.3 c. 83.9 The 99% confidence interval for the population mean is equal to: a, (9416.1, 9583.9) b. (9422.7, 9577.3) c. (8438.1, 9561.9)
a. You measure 43 watermelons' weights, and find they have a mean weight of 48 ounces....
a. You measure 43 watermelons' weights, and find they have a mean weight of 48 ounces. Assume the population standard deviation is 2.2 ounces. Based on this, what is the maximal margin of error associated with a 95% confidence interval for the true population mean watermelon weight? Give your answer as a decimal, to two places ± ounces b. You measure 25 watermelons' weights and find they have a mean weight of 44 ounces. Assume the population standard deviation is...
Wildlife conservationists studying grizzly bears in the United States found that the mean weight of 23...
Wildlife conservationists studying grizzly bears in the United States found that the mean weight of 23 adult males was 629 pounds with a standard deviation of 90 pounds. Construct a 90% confidence interval for the mean weight of all adult male grizzly bears in the United States. Assume that the weights of all adult male grizzly bears in the United States are normally distributed. Round to the nearest whole number.
a) Suppose that the weight of the adult male wombat is normally distributed with mean 8,6 pounds and standard deviation 1.1 pounds. What is the probability that a randomly selected adult male wombat will weigh at least 9.5 lbs? Rounded to the nearest.01 pound, what is the 85th percentile of adult male wombat weight? A sample of 50 wombats is chosen. What is the probability that its mean is less than 8.3 pounds? To conduct a new study to find...
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