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Recent questions tagged business-statistics-and-math

2) Ace Auto Parts takes inventory annually. Beginning inventory for the year was $196,000. Ending inventory for the year was $212,000. Compute the average inventory for Ace Auto Parts.

asked Apr 3, 2023 in Business by rabbiteater

Indicate whether each of the following should be (A) added to the bank statement balance, (B) subtracted from the bank statement balance, (C) added to the checkbook balance, or (D) subtracted from the checkbook when computing the reconciled balance.

asked Mar 13, 2023 in Business by rabbiteater

Suppose X and Y denote the exam scores in MSS391 course for boys and girls, respectively.

asked Oct 14, 2022 in Mathematics by Tictoc Andrews

The annual income of workers is normally distributed with mean of Rs. 32.000 and a standard deviation of Rs. 2000. If a worker is chosen at random. what is the probability that the worker earns Between Rs. 28000 to 32.000?

asked Aug 31, 2022 in Statistics by inamullah54

A major cell phone service provider has determined that the number of minutes that its customers use their phone per month is normally distributed with a mean equal to 445.5 minutes with a standard deviation equal to 177.8 minutes. The company is thinking of charging a lower rate for customers who use the phone less than a specified amount.If it wishes to give the rate reduction to no more than 12 percent of its customers, what should the cut-off be

asked Apr 28, 2022 in Statistics by jessicasusie

A recent study showed that the length of time required for customers to resolve their computer issues with online support is normally distributed with a mean equal to 0.35 hours with a standard deviation of 0.2 hours. Given this information, what is the probability of resolution will take between 10 and 15 minutes?

asked Apr 28, 2022 in Statistics by jessicasusie

A hiking club planned to hike to a waterfall which was 8 3/10 miles away. When the hikers stopped for a rest, they had walked 5 1/2 miles. How far were they from the waterfall?

asked Mar 18, 2022 in Business by LearningIsFun

A college administrator claims that probably 30% of students do not know the name of a single one of their professors. You decide to survey 20 random students and find that only two do not know the names of any of there professors. If the administrator is correct what would be the probability of getting exactly two in your survey?

asked Feb 20, 2022 in Statistics by sarahhardy406

A random variable is...

asked Feb 13, 2022 in Statistics by mmarley

The following are the results of a stratified random sample. Stratum (h) ph Nh nh 1 0.15 300 50 2 0.18 400 60 3 0.26 350 40 4 0.20 450 55 a.Determine the point estimator of the population proportion.b.Estimate the standard error of the population proportion.c.Develop an approximate 95% confidence interval for the population proportion.

asked Dec 24, 2021 in Business by Logic

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