Last 2015, the government made a claim that the average income of the Filipino people was ₱18,000. However, a sample was taken recently showing an average income of ₱20,000 with a population standard deviation of ₱1,300. Which test statistic is appropriate to use?

Q: Mark, who is on the UNH football team, weighs 236 pounds. The entire football team has a mean weight…

A: Calculate the z-score corresponding to the Mark

Q: The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6…

A: Given  nw=117, x¯w=46.7 and  sw=11.4 And           nnw=86, x¯nw=38.4 and  snw=15.4

Q: On a final  examination in mathematics , the mean was 72  and standard deviation was 15 . Determine…

A: given information: μ=72σ=15x=65 we want to determine the z score . z=x-μσ  =65-7215  =-0.4667

Q: The heights of women aged 20- 29 in the United States are approximately Normal with mean 64.2 inches…

A: The heights of women are approximately normal with a mean of 64.2 inches and a standard deviation of…

Q: Mrs. Smith's reading class can read a mean of 175 words per minute with a standard deviation of 20…

A: Let the random variable x denotes the number of words read per minutes. Given that Mrs. Smith's…

Q: An IQ test has a mean of 99 and a standard deviation of 15. Which is more unusual, an IQ of 69 or an…

A: GivenMean(μ)=99standard deviation(σ)=15

Q: The most common intelligence quotient (IQ) scale is Normally distributed with a mean of 100 and a…

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: An advertising agency has stated that 20% of all television viewers watch a particular program. How…

A: From the provided information, An advertising agency has stated that 20% of all television viewers…

Q: statistics professor reported that the mean score in a recent quiz is 72 and the standard deviation…

A: Solution

Q: What is the formula for a deviation score from a population?

A: Formula :

Q: oby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A:

Q: Psychological and educational tests, including MMPI are often designed so they have a mean of 50 and…

A: Given that  They have a mean of 50 and a standard deviation of 10.

Q: Average math SAT score is 517 with a standard deviation of 117. School Clemson SAT score of 50…

A: Here, we will use z-test for single mean as n≥30.

Q: The U.S. Bureau of Labor statistics reports that the average annual expenditure on food and drink…

A: Given Information: Mean μ=$5700 Standard deviation σ=$1500 To find the percentage of families who…

Q: Psychological and educational tests, including MMPI are often designed so they have a mean of 50 and…

A: Given: Mean μ=50 Standard deviation σ=10

Q: n a qualifying examination for admittance to the BS Psycholo the mean score was 75 and the standard…

A: Given that  mean =75 ,s.d = 8

Q: The 40-hour work week is considered the standard in American society today. Imagine you wish to use…

A: The t-statistic is generally higher than the z-statistic at smaller degrees of freedom, i.e. at…

Q: According to a study, there is an increase on average monthly expenses of ₱250.00 for cell phone…

A: We have given that,  Sample size = 60, average = 280.00, and population standard deviation = 77.00…

Q: Randomly select the weight 6 people from the group. Round your mean and standard deviations to 1…

A: Answer:- Given, The random sample is,  184, 186, 202, 206, 216,221 Sample size, n = 6  And the…

Q: mandatory competency test for high school sophomores has a normal distribution with a mean of 329…

A:

Q: Andrew finds that on his way to work his wait time for the bus is roughly uniformly distributed…

A: Given: The graph is as below X ~ U (a = 15, b = 23)

Q: the grouped data?

A:

Q: What percentage of computer programmer major received a starting offer between $32000 and $38000?…

A: The following information has been provided: \mu = 39269, \text{ } \sigma = 2550Mean : μ=39269,…

Q: According to the document Consumer Expenditures, the average consumer spent $1,874 on apparel and…

A: Given Information: Population mean (u) = $ 1874  Sample mean (x) = $ 2061  Standard Deviation (s) =…

Q: A study by the National Center for Health Statistics suggested that women between the ages 20 and 29…

A: 0.33271Explanation:For the given normal distribution with μ=26.8 and σ=7.4, the required proportion…

Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

Q: A study states that for a particular area, the average income per family is $34,569 and  the…

A: Mean =$34,569 Standard deviation =$8256

Q: The sample standard deviation is a measure of what?

A: The sample standard deviation is a measure of spread of scores within a sample data.

Q: As reported in Runner's World magazine, the times of the finishers in the New York City 10- km run…

A: Percentile : Percentile is the number such that certain percentage of the fall below that values.…

Q: In a survey of women in Canada, the mean height was 65 inches with a standard deviation of 3 inches.…

A:

Q: Explain why we cannot calculate the mean and standard deviation for scores on a categorical…

A: Variables:They can be classified into two typesCategorical (Qualitative)Quantitative

Q: The providence health maintenance organization wants to establish a criterion for recommending…

A: Given Information Mean (µ) = 178.1 Standard deviation (σ) = 40.7

Q: A distribution of newly manufactured amusement park bumper cars has mean 400 pounds and standard…

A: Explained below

Q: In a study of Ridge View's boys' basketball team, the average height is 68 inches and standard…

A: Given that, In a study of Ridge view's boys' basketball team, the average height is 68 inches and…