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QUESTION 24 Provide an appropriate response. What are the values of u for the sampling distribution...
Provide an appropriate response. Determine whether the normal sampling distribution can be used. The claim is...
Provide an appropriate response. Determine whether the normal sampling distribution can be used. The claim is p> 0.015 and the sample size is n-150 Use the normal distribution O Do not use the normal distribution QUEST 12.5 points Save Answer A telephone company claims that 20% of its customers have at least two telephone lines. The company selects a random sample of 500 customers and finds that 88 have two or more telephone lines. If a= 0.05, test the company's...
Provide an appropriate response. Determine the sampling error if the grade point averages for 10 randomly...
Provide an appropriate response. Determine the sampling error if the grade point averages for 10 randomly selected students from a class of 125 students has a mean of x = 1.8. Assume the grade point average of the 125 students has a mean of u=2.4 Select one: o A. 0.6 O B. 1.5 O C.2.1 O D. -0.6
Provide an appropriate response. Test the claim about the population mean u at the level of...
Provide an appropriate response. Test the claim about the population mean u at the level of significance a. Assume the population is normally distributed. Claim: u = 35; a = 0.05; o = 2.7 Sample statistics: x = 34.1, n = 35 Not enough information to decide. Reject Ho. There is enough evidence at the 5% level of significance to support the claim. Fail to reject Ho. There is not enough evidence at the 5% level of significance to support...
QUESTION 20 Provide an appropriate response. The owner of a computer repair shop has determined that their daily re...
QUESTION 20 Provide an appropriate response. The owner of a computer repair shop has determined that their daily revenue has mean $7200 and standard deviation $1200. The daily revenue totals for the next 30 days will be monitored. What is the probability that the mean daily revenue for the next 30 days will exceed 575007 O 0.9147 0.0853 0.0869 0.9131 QUESTION 21 Provide an appropriate response. The standard error of the mean is given by O OX olu - Oto
Question 1 1 pts The sampling distribution of the sample mean refers to d the distribution...
Question 1 1 pts The sampling distribution of the sample mean refers to d the distribution of the different possible values of the sample mean O the distribution of the various sample sizes O the distribution of the values of the objects/individuals in the population O the distribution of the data values in a given sample O none of the listed Question 2 1 pts The Central Limit Theorem states that O if the sample size is large, then the...
A normal-shaped distribution has u 130 and o = 24. (a) What are the Z-score values...
A normal-shaped distribution has u 130 and o = 24. (a) What are the Z-score values that form the boundaries for the middle 98% of the distribution of sample means? lower z-score boundary: upper Z-score boundary: Report answers accurate to at least 3 decimal places. 36 scores. (b) Compute the z-score for M 140 for a sample of n = Z-score = Report answers accurate to at least 3 decimal places. (c) Is this sample mean in the middle 98%...
A population has a mean u=73 and a standard deviation sigma equals 24. Find the mean...
A population has a mean u=73 and a standard deviation sigma equals 24. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=64. ux= ox=
Provide an appropriate response. The sum of the probabilities of a discrete probability distribution must be...
Provide an appropriate response. The sum of the probabilities of a discrete probability distribution must be between zero and one. equal to one. less than or equal to zero. greater than one. QUESTION 23 Provide an appropriate response. To assess attitudes towards issues that affect the residents of a village, the village randomly chose 800 families to participate in a survey of life attitudes. The village received 628 completed surveys. What is the sample proportion of completed surveys? 1.274 O...
normal probability distribution . Provide an appropriate response. (1 point) Samples of size n 15 are...
normal probability distribution
. Provide an appropriate response. (1 point) Samples of size n 15 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the standard deviation is found for each sample. What is the distribution of the sample standard deviations? O normal (approximately) O skewed to the right O skewed to the left O not enough information provided 15. Provide an appropriate response. point) Samples of size n 90 are randomly...
0.044 Question 5 (1 point) Provide an appropriate response. In one city, 24% ofadults smoke. In...
0.044 Question 5 (1 point) Provide an appropriate response. In one city, 24% ofadults smoke. In groups of size 130 of adults, what is the variance of the number that smoke ? 23.71 31.2 11.86 4.87 Question 6 (1 point) Provide an appropriate response. According to the Federal Communications Commission, 70% of all U.S. households have vcrs. In a random sample of 15 households, what is the probability that the number of households with vers is between 10 and 12,...
Provide an appropriate response. Determine whether the normal sampling distribution can be used. The claim is p> 0.015 and the sample size is n-150 Use the normal distribution O Do not use the normal distribution QUEST 12.5 points Save Answer A telephone company claims that 20% of its customers have at least two telephone lines. The company selects a random sample of 500 customers and finds that 88 have two or more telephone lines. If a= 0.05, test the company's...
Provide an appropriate response. Determine the sampling error if the grade point averages for 10 randomly selected students from a class of 125 students has a mean of x = 1.8. Assume the grade point average of the 125 students has a mean of u=2.4 Select one: o A. 0.6 O B. 1.5 O C.2.1 O D. -0.6
Provide an appropriate response. Test the claim about the population mean u at the level of significance a. Assume the population is normally distributed. Claim: u = 35; a = 0.05; o = 2.7 Sample statistics: x = 34.1, n = 35 Not enough information to decide. Reject Ho. There is enough evidence at the 5% level of significance to support the claim. Fail to reject Ho. There is not enough evidence at the 5% level of significance to support...
QUESTION 20 Provide an appropriate response. The owner of a computer repair shop has determined that their daily revenue has mean $7200 and standard deviation $1200. The daily revenue totals for the next 30 days will be monitored. What is the probability that the mean daily revenue for the next 30 days will exceed 575007 O 0.9147 0.0853 0.0869 0.9131 QUESTION 21 Provide an appropriate response. The standard error of the mean is given by O OX olu - Oto
Question 1 1 pts The sampling distribution of the sample mean refers to d the distribution of the different possible values of the sample mean O the distribution of the various sample sizes O the distribution of the values of the objects/individuals in the population O the distribution of the data values in a given sample O none of the listed Question 2 1 pts The Central Limit Theorem states that O if the sample size is large, then the...
A normal-shaped distribution has u 130 and o = 24. (a) What are the Z-score values that form the boundaries for the middle 98% of the distribution of sample means? lower z-score boundary: upper Z-score boundary: Report answers accurate to at least 3 decimal places. 36 scores. (b) Compute the z-score for M 140 for a sample of n = Z-score = Report answers accurate to at least 3 decimal places. (c) Is this sample mean in the middle 98%...
Provide an appropriate response. The sum of the probabilities of a discrete probability distribution must be between zero and one. equal to one. less than or equal to zero. greater than one. QUESTION 23 Provide an appropriate response. To assess attitudes towards issues that affect the residents of a village, the village randomly chose 800 families to participate in a survey of life attitudes. The village received 628 completed surveys. What is the sample proportion of completed surveys? 1.274 O...
normal probability distribution
. Provide an appropriate response. (1 point) Samples of size n 15 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the standard deviation is found for each sample. What is the distribution of the sample standard deviations? O normal (approximately) O skewed to the right O skewed to the left O not enough information provided 15. Provide an appropriate response. point) Samples of size n 90 are randomly...
0.044 Question 5 (1 point) Provide an appropriate response. In one city, 24% ofadults smoke. In groups of size 130 of adults, what is the variance of the number that smoke ? 23.71 31.2 11.86 4.87 Question 6 (1 point) Provide an appropriate response. According to the Federal Communications Commission, 70% of all U.S. households have vcrs. In a random sample of 15 households, what is the probability that the number of households with vers is between 10 and 12,...
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