A state administered standardized reading exam is given to eighth grade students. The scores on this...
A state administered standardized reading exam is given to eighth grade students. The scores on this exam for all students statewide have a normal distribution with a mean of 532 and a standard deviation of 48. A local Junior High principal has decided to give an award to any student who scores in the top 10% of statewide scores. How high should a student score be to win this award? Give your answer to the nearest integer.
Homework Answers
Given that,
P(Z > 1.28) = 0.10
z = 1.28
Using z-score formula,
x = z * 
+ 
x = 1.32 * 48 + 532 = 595.36
Score = 596
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A state administered standardized reading exam is given to
eighth grade students. The scores on this...
State administered standardized reading exam is given to eighth grade students. The scores on this exam...
State administered standardized reading exam is given to eighth grade students. The scores on this exam for all students statewide have a normal distribution with a mean of 536 and a standard deviation of 70. A local Junior High principal has decided to give an award to any student who scores in the top 10% of statewide scores. How high should a student score be to win this award? Give your answer to the nearest integer. For help on how...
Please help!! t yot wered nts out of A state administered standardized reading exam is given...
Please help!!
t yot wered nts out of A state administered standardized reading exam is given to eighth grade students. The scores on this exam for all students statewide have a normal distribution with a mean of 511 and a standard deviation of 60. A local Junior High principal has decided to give an award to any student who scores in the top 10% of statewide scores. How high should a student score be to win this award? Flag Give...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 270. Assume that the population standard deviation is 33. At alpha=0.05, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify H0 and...
SAT reading and writing section scores of a random sample of twenty 11th-grade students in a...
SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school are given below. 380 520 480 510 560 630 670 490 500 550 400 350 440 490 620 660 700 730 740 560 Test if the standard deviation of the reading and writing section SAT score of the students in this school is higher than 100. What is the value of the test statistic (round off to the nearest integer)?
A random sample of 75 eighth grade students' scores on a national mathematics assessment test has...
A random sample of 75 eighth grade students' scores on a national mathematics assessment test has a mean score of 279. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 275. Assume that the population standard deviation is 34. At c = 0.03, is there enough evidence to support the administrator's claim? Complete parts (a) through (). (a) Write the claim mathematically and identify...
A random sample of 90 eighth grade students' scores on a national mathematics assessment test has...
A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 200. Assume that the population standard deviation is 37. At = 0.14 is there enough evidence to support the administrator's daim? Complete parts(a) through (e) (a) Write the calm mathematically and identity Hy and...
Arandom sample of 89 eighth grade students' scores on a national mathematics assessment test has a...
Arandom sample of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 254. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the population standard deviation is 33. At = 0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e) OA HO <280 HA 200 (claim) OD. Hy 2...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a mean score of 267. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 260. Assume that the population standard deviation is 31. At α=0.12, is there enough evidence to support the administrator's claim? Complete parts (a) through (a) Write the claim mathematically and identify Ho and H...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a mean score of 272. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 270. Assume that the population standard deviation is 34. At a=0.14, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify H, and...
please find mean AND standard deviation Reading scores. The grade-level reading scores from a reading test...
please find mean AND standard deviation
Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high school graduating class are: 7 8 10 7 8 13 14 12 15 11 10 15 a. Find the mean of the reading scores (Type an integer or a decimal. Round to two decimal places.)
Please help!!
t yot wered nts out of A state administered standardized reading exam is given to eighth grade students. The scores on this exam for all students statewide have a normal distribution with a mean of 511 and a standard deviation of 60. A local Junior High principal has decided to give an award to any student who scores in the top 10% of statewide scores. How high should a student score be to win this award? Flag Give...
SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school are given below. 380 520 480 510 560 630 670 490 500 550 400 350 440 490 620 660 700 730 740 560 Test if the standard deviation of the reading and writing section SAT score of the students in this school is higher than 100. What is the value of the test statistic (round off to the nearest integer)?
A random sample of 75 eighth grade students' scores on a national mathematics assessment test has a mean score of 279. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 275. Assume that the population standard deviation is 34. At c = 0.03, is there enough evidence to support the administrator's claim? Complete parts (a) through (). (a) Write the claim mathematically and identify...
A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 200. Assume that the population standard deviation is 37. At = 0.14 is there enough evidence to support the administrator's daim? Complete parts(a) through (e) (a) Write the calm mathematically and identity Hy and...
Arandom sample of 89 eighth grade students' scores on a national mathematics assessment test has a mean score of 254. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the population standard deviation is 33. At = 0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e) OA HO <280 HA 200 (claim) OD. Hy 2...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a mean score of 267. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 260. Assume that the population standard deviation is 31. At α=0.12, is there enough evidence to support the administrator's claim? Complete parts (a) through (a) Write the claim mathematically and identify Ho and H...
A random sample of 86 eighth grade students' scores on a national mathematics assessment test has a mean score of 272. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 270. Assume that the population standard deviation is 34. At a=0.14, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify H, and...
please find mean AND standard deviation
Reading scores. The grade-level reading scores from a reading test given to a random sample of 12 students in an urban high school graduating class are: 7 8 10 7 8 13 14 12 15 11 10 15 a. Find the mean of the reading scores (Type an integer or a decimal. Round to two decimal places.)
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