Suppose that a study of elementary school students reports that the mean age at which children...
Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.4 years with a standard deviation of 0.8 years.
Step 1 of 2 :
If a sampling distribution is created using samples of the ages
at which 38 children begin reading, what would be the mean of the
sampling distribution of sample means? Round to two decimal places,
if necessary.
Homework Answers
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Suppose that a study of elementary school students reports that
the mean age at which children...
Suppose that a study of elementary school students reports that the mean age at which children...
Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.8 years with a standard deviation of 1.1 years. Step 1 of 2: If a sampling distribution is created using samples of the ages at which 65 children begin reading, what would be the mean of the sampling distribution of sample means? Round to two decimal places, if necessary. Step 2 of 2:If a sampling distribution is created using samples of...
Suppose that a study of elementary school students reports that the mean age at which children...
Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.7 years with a standard deviation of 0.7 years. Step 1 of 2: If a sampling distribution is created using samples of the ages at which 55 children begin reading, what would be the mean of the sampling distribution of sample means? Round to two decimal places, if necessary. Tables Keypad Answer 2 Points 2019 Hawkes Learning here to search
01:02:39 Suppose that a study of elementary school students reports that the mean age at which children begin readi...
01:02:39 Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.7 years with a standard devial of 0.7 years. Step 2 of 2: If a sampling distribution is created using samples of the ages at which 55 children begin reading, what would be the standard deviation of the sampling distribution of sample means? Round to two decimal places, if necessary. Tables Keypad Answer 2 Points here to search
The opera theater manager assumes that 12% of the opera tickets for tonight's show have been...
The opera theater manager assumes that 12% of the opera tickets for tonight's show have been sold. If the manager is correct, what is the probability that the proportion of tickets sold in a sample of 473 tickets would be greater than 13%? Round your answer to four decimal places. Q1 Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.85.8 years with a standard deviation of 0.80.8 years. Step...
1) Suppose cattle in a large herd have a mean weight of 1169lbs and a variance...
1) Suppose cattle in a large herd have a mean weight of 1169lbs and a variance of 17,161. What is the probability that the mean weight of the sample of cows would differ from the population mean by greater than 12lbs if 145 cows are sampled at random from the herd? Round your answer to four decimal places. 2) The mean lifetime of a tire is 36 months with a variance of 49. If 126 tires are sampled, what is...
Imagine that you are doing an exhaustive study on the children in all of the elementary...
Imagine that you are doing an exhaustive study on the children in all of the elementary schools in your school district. You are particularly interested in how much time children spend doing active play on weekends. You find that for this population of 2,431 children, the average number of minutes spent doing active play on weekends is μ = 87.85, with a standard deviation of ơ-118.1. You select a random sample of 25 children of elementary school age in this...
Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5...
Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 11 years old. 35 randomly selected children from the school are asked their age. Round all answers to 4 decimal places where possible a. What is the distribution of X?X-UC-.-., Suppose that 35 children from the school are surveyed. Then the sampling distribution is b. What is the distribution of ? a N c. What is the probability that the average of 35...
Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5...
Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 10 years old. 48 randomly selected children from the school are asked their age. Round all answers to 4 decimal places where possible. What is the distribution of XX? XX ~ U( ____ , ____ ) Suppose that 48 children from the school are surveyed. Then the sampling distribution is What is the distribution of ¯xx¯? ¯xx¯ ~ N( ____ , ____ )...
A study on the latest fad diet claimed that the amounts of weight lost by all...
A study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 23.7 pounds and a standard deviation of 7.1 pounds. Step 1 of 2: if a sampling distribution is created using samples of the amounts of weight lost by 60 people on this diet, what would be the mean of the sampling distribution of sample means? Round to two decimal places, if necessary. Step 2 of 2:...
7. At a large university, the mean age of students is 22.3 years, and standard deviation...
7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 students are drawn. (a) What type of distribution is the sampling distribution of mean and why? (b) What is the probability that the average age of these 64 students is greater than 23 years? (c) What is the probability that the total age of a class of 24 students will be less than 540? (5 points)
Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.7 years with a standard deviation of 0.7 years. Step 1 of 2: If a sampling distribution is created using samples of the ages at which 55 children begin reading, what would be the mean of the sampling distribution of sample means? Round to two decimal places, if necessary. Tables Keypad Answer 2 Points 2019 Hawkes Learning here to search
01:02:39 Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.7 years with a standard devial of 0.7 years. Step 2 of 2: If a sampling distribution is created using samples of the ages at which 55 children begin reading, what would be the standard deviation of the sampling distribution of sample means? Round to two decimal places, if necessary. Tables Keypad Answer 2 Points here to search
Imagine that you are doing an exhaustive study on the children in all of the elementary schools in your school district. You are particularly interested in how much time children spend doing active play on weekends. You find that for this population of 2,431 children, the average number of minutes spent doing active play on weekends is μ = 87.85, with a standard deviation of ơ-118.1. You select a random sample of 25 children of elementary school age in this...
Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 11 years old. 35 randomly selected children from the school are asked their age. Round all answers to 4 decimal places where possible a. What is the distribution of X?X-UC-.-., Suppose that 35 children from the school are surveyed. Then the sampling distribution is b. What is the distribution of ? a N c. What is the probability that the average of 35...
7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 students are drawn. (a) What type of distribution is the sampling distribution of mean and why? (b) What is the probability that the average age of these 64 students is greater than 23 years? (c) What is the probability that the total age of a class of 24 students will be less than 540? (5 points)
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