Suppose the significance level is set at 0.05, what would be the p-value for a normality test for the data to follow a Normal distribution? 1. P-value lesser than 0.05. 2. P-value greater than the hypothesized mean. 3. P-value equal to 0.05. 4. P-value greater than 0.05.

Q: Consider a value to be significantly low if its z score less than or equal to minus−2 or consider…

A: In the question the values are printed two times as 19.419.4. For convenience, the values are taken…

Q: 2. Which is a better score: a score 82 on a test with a mean of 70 and a standard deviation of 8,…

A:

Q: Suppose weekly rent is normally distributed with a mean of $200 and a standard deviation of $100.…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Harry’s commuting times to work have a normal distribution with a mean of 45 minutes and standard…

A: Given: μ = 45 minutes σ = 10 minutes   Formula Used: Z-score = X-μσ

Q: Bernadette is studying the average height of male and female antelopes. The height of antelopes has…

A: Here we want to find the P value for Z = - 1.75

Q: Suppose that sixteen-ounce bags of chocolate chips cookies are produced with an actual mean weight…

A: Given that,  Mean, mu= 16.1, standard deviation, sigma=0.1 We know that, z score= (X-mu)/sigma We've…

Q: 19. Score 92 or lower? 20. Score 92 or higher?

A:

Q: Birna is studying the average height of male and female antelopes. The height of antelopes has been…

A: Given, Claim: The average height differs between the sexes. The test is two tailed. Given test…

Q: Suppose a professor uses a normal distribution to assign grades in her math class. • She assigns an…

A: Given: z score Grade >2.2 A <-2 F 0.9 < z<2 B -1 < z< -0.8 D

Q: 21. What is the probability of selecting someone from the general population at random who would…

A: Given that Population mean=100  Standard deviation =5  We have to find 21.. probability of selecting…

Q: A division wide aptitude test in mathematics was conducted to 1000 pupils. The mean of the test is…

A: Given, A division wide aptitude test in mathematics was conducted to 1000 pupil. The mean of the…

Q: What is the Z-score o the 97 with standard deviation of 11.811 and a mean of 80.2?

A: What is the Z-score o the 97 with standard deviation of 11.811 and a mean of 80.2?…

Q: What percentage of a normal distribution falls between z = -1.16 and z = +1.16?

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 81 subjects were treated with raw…

A: Given information Hypothesized mean µ = 0 Sample size (n) = 81 Mean x̅  = 0.6 Standard deviation (s)…

Q: What percentage of scores in a normal distribution fall at or above a z score of 1.04?

A: given data  normal distribution percentage of scores above Z:1.04 = ?

Q: A normal distribution has a mean of 130 and a standard deviation of 4. Fing the z-score for a data…

A: The mean is 130 and the standard deviation is 4.

Q: What proportion of a normal distribution is located between the mean and z= -1.56? (a) .9406 (b)…

A: Z score = -1.56

Q: For a standard normal curve, find the z-score that separates the bottom 70% from the top 30%.

A: Answer:- Given, a standard normal curve,               Find the z-score that separates the bottom…

Q: The distribution of sample means tends to be a normal distribution. true or false?

A: This question explores the characteristics of the distribution of sample means. Specifically, it…

Q: 6-The mean number of hours an American worker spends on the computer is 3.1 hours per workday.…

A: Mean(μ)=3.1 Standard deviation(σ)=0.5

Q: An original population of scores with a mean = 50 and SD = 6 is standardized to create a new…

A: given data  1 represents original population 2 reperesents new distributionμ1 = 50μ2 = 80σ1 = 6σ2 =…

Q: what would be the probability that you would select any one individual who falls between +1 and -2…

A: Given that,

Q: What percentage of scores falls in the tails of a normal curve?

A: Empirical rule: According to empirical rule, 99.7% of data lies within three standard deviations of…

Q: The owner of a local theatre is interested in the average number of attendees for weeknight shows.…

A: Given, Mean  = 1550 Standard deviation = 180 Sample size n = 36 Sample average = 1400 Sample…

Q: What proportion of a normal distribution is located between the mean and z = -0.47?

A:

Q: Use the normal distribution of IQ​ scores, which has a mean of 105 and a standard deviation of13,…

A: It is given that the mean is 105 and standard deviation is 13.

Q: What proportion of a normal distribution is located between the mean and z = 2.00?

A: proportion of a normal distribution is located between the mean and z = 2.00

Q: For the standard normal curve, identify the z-score that corresponds to the 20thpercentile.

A: The z-value corresponding to 80% or an area of 0.80 is 0.8416 as per z-table.

Q: The scores for a standardized test follow a normal distribution with a mean test score = 84, and…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

Q: t is the least percentage of data that falls within 2.5 standard devia

A: This Chebyshev's theorem can be applied to any type of distribution. To use Chebyshev's theorem, it…

Q: The distribution will be approximately a normal curve with mean_____and standard deviation_____ .

A: It is given that Mean = 104 And SD = 18 Sample size n = 100

Q: What proportion of scores are above z-score of 1.0 in a normal distribution?

A: We want to find P(Z>1)= ?

Q: Assume that the number of days from conception to birth is normally distributed with a mean of 271…

A: Given that  Mean = 271, SD = 4 X = 238

Q: Assume that an intelligence test scores are distributed normallt with a mean of 100 and a standard…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: Total Cholesterol in Children aged 10-15 years assumed to follow a normal distribution with a mean…

A: Solution: It is given that:Total Cholesterol in Children aged 10-15 years assumed to follow a normal…

Q: Suppose that the middle 95% of average scores in the NBA per player per game fall between 2.01 and…

A: Given that the middle 95% of average scores in the NBA per player per game fall between 2.01 and…

Q: Home prices in a city have mean = $194,000 and standard deviation = $20,000. For n = 25 randomly…

A: population mean ()=194000standard deviation()=20000sample size(n)=25Mean()=198000

Q: The population average for SAT scores is known to be 500 with a standard deviation of 100. This…

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…

Q: What proportion of scores are below z-score of a +1.00 in a normal distribution?

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: The GSS survey is conducted for approximately 2200 adults every year, since 1972 for a total of more…

A: The mean is 7.44 and the standard deviation is 10.98.

Q: Suppose that a normal distribution has a mean of 57 and a standard deviation of 10.2. Between what x…

A: