Highway driving speeds are normally distributed with a mean of 62.4 and a standard deviation of 10.6 find P81 which separates the bottom 77% from the top 23%

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

A:

Q: Salaries for teachers in a particular elementary school district are normally distributed with a…

A: The properties of the normal distribution is,   The Normal distribution curve is and bell shaped…

Q: Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets…

A: Let us define the random variable X as the amount of sleep an adult gets per day is normally…

Q: Suppose that the weights of candy bars vary according to a normal distribution, with mean of 62…

A: The question is about normal dist. Given : The mean weights of candy bars ( μ ) = 62 g The std.…

Q: Identify the data value corresponding to the indicated percentile. The heights of women are normally…

A: According to the provided information,

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what…

A:

Q: A study found out that for a particular area, the average income per family is $24596 and the…

A: Solution

Q: minutes. What percentage of his commutes will be between 13 and 26 minutes, to the nearest tenth?

A: Let X be the random variable that amount of time to arrive. Given that, X~N(μ=23,σ=5)

Q: The temperature is recorded at 80 airports in the region. The average temperature is 65 degrees…

A: Solution

Q: normal distribution has a mean of 136 and a standard deviation of 4. Find the z-score for a data…

A: given data, normal distribution μ=136σ=4z score for a data value of 132=?

Q: Birth weights are normally distributed with a mean of 7.5 pounds and a standard deviation of 1.5…

A: Solution-: Let, X-be the birth weights  of baby's Given: \mu=7.5 pounds,\sigma=1.5pounds We find the…

Q: Scores for a civil service exam are normally distributed, with a standard deviation of 8. To be…

A:

Q: Heights for 16-year-old boys are normally distributed with a mean of 68.3 in. and a standard…

A: Given information: μ=68.3, σ=2.9 The P-value for the 96th percentile = 0.96 Determine the z-score…

Q: What proportion of skiers will finish the race in exactly one minute?

A: The tume it takes for downhill skiers to finish a race follows a Normal distribution with a mean of…

Q: The heights of women are approximately Normal with mean 63.7 inchs and standard deviation 2.5…

A: Given information For Women Mean (µ1) = 63.7 inches Standard deviation (σ1) = 2.5 inches For men…

Q: A normal distribution has a mean of 81 and a standard deviation of 4. Find the z-score for a data…

A:

Q: On a standardized exam, the scores are normally distributed with a mean of 120 and a standard…

A: Mean(μ)=120 Standard deviation(σ)=10 Raw score(X)=115

Q: om's commuting time from his residence in Carmel to the IUPUI campus has a normal distribution.  The…

A: Given that  The residence in Carmel to the IUPUI campus has a normal distribution.  Standard…

Q: Salaries for Macdonald's workers are normally distributed with a mean of $30,000 and a standard…

A: Given: μ=30000 and σ=5000. From the given information:PZ<z=95%⇒PZ<z=0.95

Q: A college entrance exam scores are approximately normally distributed with a mean value of 145 and a…

A: Solution: Let X be the college entrance exam score. From the given information, X follows normal…

Q: A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose…

A: A) option A is the answer. Answer : Since the distribution of time spent eating and drinking each…

Q: A distribution of values is normal with a mean of 204.2 and a standard deviation of 39.2. Find P84,…

A: Given: A distribution of value is normal with mean of 204.2 A standard deviation of 39.2 It is…

Q: The average sale price (online) for a certain brand of professional mountain bike is approximately…

A: Given that, Population Mean (μ)=$4200Population standard deviation (σ)=$250 Let X denote the average…

Q: Red pens come with a certain amount of dye #2 from the factory. The average pen needs approximately…

A:

Q: what is the value of the standard deviation of the weekly earnings of the bus drivers?

A: Let X be the random variable for the weekly earnings of bus drivers.Given that,Population mean

Q: The weights of the native North American Blue Jay have a mean of 18.4 ounces with a standard…

A:

Q: In a normally distributed data set a mean of 55 where 95% of the data fall between 47.4 and 62.6,…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days…

A:

Q: The SAT Math scores have a bell-shaped distribution with a Mean of 567 and a Standard Deviation of…

A: We have given that,  Let the SAT scores are normally distributed with mean (mu) = 567 and standard…

Q: A person records the speeds of various cars as they drive past their house. After 100 readings, the…

A: Given,mean(μ)=23.84standard deviation(σ)=3.56

Q: Engineers must consider the breadths of male heads when designing helmets. The company researchers…

A: It is given that the mean and standard deviation are 6.8 and 0.8, respectively.

Q: The middle 50% of the heights are between what two values? Round to one decimal place.

A: Here Given, Assume that women have heights that are normally distributed with a mean of 63.6 inches…

Q: A hiring manager rates a large pool of job applicants for eligibility for a job vacancy. The ratings…

A: Determine the value of rating score that separates the top 10% with the rest.   The value of…

Q: Suppose the heights of women at a college are approximately Normally distributed with a mean of 65…

A: The objective of this question is to find the height that corresponds to the 40th percentile in a…

Q: A normal distribution has a mean of 3.7 and a standard deviation of 2.3. What is the median?

A: From the provided information,

Q: Most graduate schools of business require applicants for admission to take the Graduate Management…

A: Given that  μ=527σ=112

Q: Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…