a lower waiting time? The 10 randomly selected patients who went to the emergency room at rural hospitals waited an average of 3.8 hours to be admitted into the hospital. The standard deviation for these 10 patients was 2 hours.  The test statistic     = ?(please show your answer to 4 decimal places.) The p-value = ? (Please show your answer to 5 decimal places.)

Q: er has a height of 6 feet 8 inches, or 203 cm. Based on statistics from a data set, his e of 4.10.…

A:

Q: Raul received a score of 73 on a history test for which the class mean was 70 with a standard…

A: Here we need to find the z score and for that, we have to use the formula z = Value-meanStandard…

Q: Naomi scores 39 on a test. The standard deviation is 6.00. Her z score is +1.5. What is the mean of…

A: given data x = 39 σ = 6z = 1.5μ = ?

Q: Suppose that the exam scores of a statistics class were normally distributed with a mean of 94 and…

A: Solution: Let X be the exam score of a statistics class. From the given information, X follows…

Q: A class of 30 62.171 students took a quiz worth 50 points. The standard deviation of the scores was…

A: Standard deviation of sample is given by

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: Use z scores to compare the given values. In a recent awards ceremony, the age of the winner for…

A:

Q: a bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean…

A: We have to find 60th percentile.

Q: he senior class has been given a comprehensive examination to assess educational experience. The…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Molly earned a score of 920 on a national achievement test. The mean test score was 825 with a…

A: Given that, The proportion of students had a higher score than Molly is,

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: You measure the height of 10 people and come up with an average of 70 inches and a standard…

A: x=70s=4n=10 The t scores for 68 inches, t=68-xsn=68-70410=-1.581139

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: John got 83 on a test, with a standard deviation of 10.73 and the class mean was 77.1. Paul got 88…

A: From the provided information, John got (X) 83 on a test with a standard deviation (σ) of 10.73 and…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: Use z scores to compare the given values.   In a recent awards​ ceremony, the age of the winner for…

A: Given : x¯actor = 45.5 sactor = 6.7 xactor = 34 x¯actress = 32.7 sactress = 10.2 xactress = 45 Z = x…

Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

A:

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A: Solution: Let X be the waiting time. From the given information, x-bar = 2.7 hours, S=2.8 hours and…

Q: The golf scores for a school team were normally distributed with a mean of 68 and a standard…

A: Let X be the golf scores. It is given that X is normally distributed with mean 68 and standard…

Q: he mean on an exam is 80 with a standard deviation of 5 points. If Joe scored a 90 on the exam, what…

A: given data, μ=80σ=5x=90 z score for the given data=?

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: Find the deviations from the mean for the set of data: 26, 29, 22, 24, 24. Score 26 29 22 24 24…

A: Given Data is, 26,29,22,24,24 mean,x¯ =26+29+22+24+245=25

Q: The weight of a division I college football player has a mean of 255lb and a standard deviation of…

A:

Q: Use z scores to compare the given values.   The tallest living man at one time had a height of 225…

A: Given that  The tallest living man at one time had a height of 225 cm. The shortest living man at…

Q: recent awards​ ceremony, the age of the winner for best actor was 33 and the age of the winner for…

A: Given that  For all best​ actors, the mean age is 44.6 years and the standard deviation is 8.3…

Q: Grace has a dog and its weight is z = -0.5lbs.  Her current weight is 47 lbs.  The average weight…

A:

Q: he quantitative subset of the Graduate Record Exam (GRE) has a mean of 500 and a standard deviation…

A: Given data population mean (μ)= 500populatiion sd(σ) = 100sample size(n) = 64sample mean ( x¯ )=…

Q: Use z scores to compare the given values. The tallest living man at one time had a height of 233 cm.…

A:

Q: A population has a Mean of 100 and a standard deviation of 15.  A sample of 20 college students is…

A: Given information- Population mean, µ = 100 Sample mean, x-bar = 125 Population standard deviation,…

Q: Cherise is interested in how her friends compare to the population for number of hours of television…

A: The test statistic is,