On average a student types 100 words/minute midway through an advanced court-reporting course at the American Institute of Court Reporting. Assuming dictation speeds are distributed normally with a standard deviation of 20 words/min, what proportion of students can take dictation at the following speeds. At least 120 wpm At most 80 wpm

Q: A particular fruit's weights are normally distri grams. The heaviest 14% of fruits weigh more than…

A: Given: Mean, μ=448 Standard deviation, σ=21 Using standard normal table: P (Z>z)=14%1-P…

Q: number 4

A: A frequency table is used to understand the number of times an observation occurs. The cumulative…

Q: deviations. Which data set is more consistent?   Data set 1: standard deviation = 6.1…

A: According to the given information in this question We need to identify that which data is…

Q: A particular fruit's weights are normally distributed, with a mean of 678 grams and a standard…

A: Let X denote the fruit's weights. Given that X follows N(mean = 678, SD = 8), then Z = (X - mean)/SD…

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A: we have given that mu=90 ,sigma=10 and sample size n=10  Z-score =(x-mu)/sigma X~N(mu, sigma^2)

Q: A particular fruit's weights are normally distributed, with a mean of 252 grams and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 736 grams and a standard…

A: Given,   Mean = 736 Standard deviation = 10

Q: A particular fruit's weights are normally distributed, with a mean of 497 grams and a standard…

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: A particular fruit's weights are normally distributed, with a mean of 292 grams and a standard…

A: Given mean = 292 grams standard deviation = 32 grams.

Q: A particular fruit's weights are normally distributed, with a mean of 539 grams and a standard…

A: Given data,normal distribution μ=539σ=22the haviest 17% of fruits weightg more than grams =?

Q: A particular fruit's weights are normally distributed, with a mean of 541 grams and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 788 grams and a standard…

A: Let "X" be the weight of the heaviest fruit in grams. Find z-value (z): Since the total area…

Q: A particular fruit's weights are normally distributed, with a mean of 234 grams and a standard…

A: Let X denote the weights of a particular fruits. Given that X~Nμ=234, σ=39, then,  Z = X - μσ ~…

Q: A particular fruit's weights are normally distributed, with a mean of 770 grams and a standard…

A: Let X be the random variable measuring the fruit's weight. Hence, X~ N(770,222)…

Q: A particular fruit's weights are normally distributed, with a mean of 772 grams and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 645 grams and a standard…

A: Let X denote the  fruit's weights and it follows normal distribution with a mean of μ=645 grams and…

Q: A particular fruit's weights are normally distributed, with a mean of 344 grams and a standard…

A: Given X is normal Distributed with mean µ = 344.0 and standard deviation σ = 8.0 now will use…

Q: A particular fruit's weights are normally distributed, with a mean of 304 grams and a standard…

A: Solution Given that, Mean(μ) = 304Standard deviation (σ) = 19

Q: Pete kept records of the fuel efficiency of his car. After the first 100 times he filled up the…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 712 grams and a standard…

A: Solution: Let X be the weight of a particular fruit. From the given information, X follows normal…

Q: professor who teaches a large introductory statistics class (197 students) with eight discussion…

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Q: Consider the variable, type of birth control practiced (e.g., an IUD, condoms, none, etc). Which…

A:

Q: particular fruit's weights are normally distributed, with a mean of 216 grams and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 649 grams and a standard…

A: Let  be the fruit's weight.Mean: Standard deviation: i.e.

Q: A particular fruit's weights are normally distributed, with a mean of 214 grams and a standard…

A: Obtain number of grams that weighs more than heaviest 11% of the fruits. The number of grams that…

Q: A particular fruit's weights are normally distributed, with a mean of 385 grams and a standard…

A: Given that mean = 385 ,s.d = 17,p value =0.10

Q: The average hourly wage for a certified dental assistant is $15.71 per hour, with a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 767 grams and a standard…

A: Given data,μ=767σ=39P(X>x)=0.11x=?

Q: The birth weights of newborn elephants are Normally distributed with a mean of 160 pounds and a…

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Q: The mean life of a tire is 30,000 km. The standard deviation is 2000km. About 95% of all tires have…

A: According to the given information, we have Mean = 30000 km Standard deviation = 2000km

Q: If the weekly grocery expenditure of households in a certain urban market is known to be normally…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 384 grams and a standard…

A: Let X be the fruit's weights follows normally distributed, with a mean of 384 grams and a standard…

Q: A particular fruit's weights are normally distributed, with a mean of 747 grams and a standard…

A: We have given that a particular fruit’s weight is normally distributed with mean 747 grams and…

Q: A particular fruit's weights are normally distributed, with a mean of 380 grams and a standard…

A: Given that, The  weight of fruit is

Q: A particular fruit's weights are normally distributed, with a mean of 519 grams and a standard…

A: The answer is attached below,

Q: A particular fruit's weights are normally distributed, with a mean of 477 grams and a standard…

A: