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Use the following information According to a recent survey, high school students average 100 text messages daily. Assume the population standard deviation is 21 text messages a day. Suppose you take a random sample of 49 high school students. P=106 σ=21 n= 49 Std=3 50. K Std 47. What is the probability that the mean of this sample is less than 105? 48 49. C. d. a. b. d. 0.0475 0.9525 C. 0.4525 d. 0.5910 a. b What is the probability that the mean of this sample is between 90 and 105? 0.4996 0.4525 0.9521 0.0479 a. b. a b. d. Incomes in a certain town are normally distributed with a mean of $36,000 and standard deviation $7000. A random sample of 75 households is taken. What is the standard error of the sample mean? $808.31 $93.33 $7000 $6000 The owner of a Dickson St. bar would like to determine whether or not the mean age of the bar's customers is over 24. If so, she plans to alter the nightly drink specials to cater to this older audience. If she concludes that the mean age is over 24 when it is not, she error. If she concludes that the mean age is not over 24 when it is, sh makes a makes a error. Type II; Type II Type I; Type I Type I; Type II Type II; Type I

Use the following information According to a recent survey, high school students average 100 text messages daily. Assume the population standard deviation is 21 text messages a day. Suppose you take a random sample of 49 high school students. P=106 σ=21 n= 49 Std=3 50. K Std 47. What is the probability that the mean of this sample is less than 105? 48 49. C. d. a. b. d. 0.0475 0.9525 C. 0.4525 d. 0.5910 a. b What is the probability that the mean of this sample is between 90 and 105? 0.4996 0.4525 0.9521 0.0479 a. b. a b. d. Incomes in a certain town are normally distributed with a mean of $36,000 and standard deviation $7000. A random sample of 75 households is taken. What is the standard error of the sample mean? $808.31 $93.33 $7000 $6000 The owner of a Dickson St. bar would like to determine whether or not the mean age of the bar's customers is over 24. If so, she plans to alter the nightly drink specials to cater to this older audience. If she concludes that the mean age is over 24 when it is not, she error. If she concludes that the mean age is not over 24 when it is, sh makes a makes a error. Type II; Type II Type I; Type I Type I; Type II Type II; Type I

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Use the following information for the next 2 questions. According to a recent survey, high school students average 100 text messages daily. Assume the population standard deviation is 21 text messages a day. Suppose you take a random sample of 49 high school students. P=106 σ=21 n = 49 Std=3 50. R Std 47. What is the probability that the mean of this sample is less than 105? 0.0475 48. 49. a. b C. d. C d. d. What is the probability that the mean of this sample is between 90 and 105? 0.4996 0.4525 0.9521 0.0479 a. b. d. 0.9525 0.4525 0.5910 Incomes in a certain town are normally distributed with a mean of $36,000 and standard deviation $7000. A random sample of 75 households is taken. What is the standard error of the sample mean? a $808.31 b. makes a makes a The owner of a Dickson St. bar would like to determine whether or not the mean age of the bar's customers is over 24. If so, she plans to alter the nightly drink specials to cater to this older audience. If she concludes that the mean age is over 24 when it is not, she error. If she concludes that the mean age is not over 24 when it is, she $93.33 $7000 $6000 error. a. Type II; Type II b. Type I, Type I Type I; Type II Type II; Type I
Transcribed Image Text:Use the following information for the next 2 questions. According to a recent survey, high school students average 100 text messages daily. Assume the population standard deviation is 21 text messages a day. Suppose you take a random sample of 49 high school students. P=106 σ=21 n = 49 Std=3 50. R Std 47. What is the probability that the mean of this sample is less than 105? 0.0475 48. 49. a. b C. d. C d. d. What is the probability that the mean of this sample is between 90 and 105? 0.4996 0.4525 0.9521 0.0479 a. b. d. 0.9525 0.4525 0.5910 Incomes in a certain town are normally distributed with a mean of $36,000 and standard deviation $7000. A random sample of 75 households is taken. What is the standard error of the sample mean? a $808.31 b. makes a makes a The owner of a Dickson St. bar would like to determine whether or not the mean age of the bar's customers is over 24. If so, she plans to alter the nightly drink specials to cater to this older audience. If she concludes that the mean age is over 24 when it is not, she error. If she concludes that the mean age is not over 24 when it is, she $93.33 $7000 $6000 error. a. Type II; Type II b. Type I, Type I Type I; Type II Type II; Type I
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