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The owner of Prices Limited claims that 75% of all the itmens in the store are less than $5. suppose that you check a random sample of 146 items in the store and find that 105 have prices less than $5. Does this indicate that the items in the store costing less than $5 is different from 75%?
b. Find critical value show problem
c. Compute the Z ot t value of the sample test statistic showing problem
d. Find the P value or an interval containing the P value for the sample test
e. Based on your answers for parts A-D what is your conclusion?
1. the daily demand for milk in gallons at gillis grocery is n1000 100. how many gallons must be in stock at the
A study is conducted to determine if time of day has any effect on test grades. An introductory psychology class is selected for the study, because it has a standard curriculum taught across many sections. Two classes are selected for each time perio..
Find the Bayesian estimator of µ that minimizes squared error loss.
Construct and interpret a 95% confidence interval for the mean score on this exam question. Follow the Inference Toolbox.
1. What do discrete random variables describe? 2. Explain joint probability. 3. Explain conditional probability.
To findout 95 percent with confidence interval for the mean amount a citation. Police Chief Aaron Ard of River City reports 500 traffic citations were issued last month.
To set up a decision rule, the sampling distribution is divided into two regions – a region of non-rejection and a region where the null hypothesis is rejected.
question as a region sales manager you are interested in testing if there is a difference in sales close rates between
Determine the probability that pregnancy will (a) last more than 300 days; (b) less than 240 days; (c) between 250 and 282 days.
A survey of 85 families showed that 36 owned at least one DVD player. Find the 99% confidence interval estimate of the true proportion of families who own at least on DVD player.
In a large metropolitan area, past records revealed that 30 percent of all the high school graduates go to college. Each student's choice to go to college is independent. From 20 graduates selected at random, what is the probability that exactly 8 wi..
The length of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. How many days do 80 percent of women last until in their birthing process?
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