QUESTION 22 The daily sales of Hi-White toothpaste are believed to be right-skewed. For a random sample of 36 days, the standard deviation sales turned out to be 15.00 tubes. Find the crtical value that corresponds to the confidence interval if the margin of error is 5.49. Round your answer to three decimal places.

One of the z-score formulas will help on this question. Scores on the SAT test are normally distributed with a mean of 500 and standard deviation of 100 points. Pretend someone scored 400 on the math portion of the SAT test. What would be the z-score cut off for this score?     A. 1.0   B. -1.0   C. 0   D. 2.0

The mean salary at a local industrial plant is $29,600 with a standard deviation of $5700. The median salary is $25.300 and the 59th percentile is $30,200. Step 5 of 5: If Tom's salary has a z-score of 0.6, how much does he earn (in dollars)?

A sample of 134 motels is selected from a large urban area and the price for a night of lodging for a single room was determined for each motel. The mean rate is computed to be $87 and the standard deviation is $14. One motel charged $57 per night which is the 13th percentile. Another motel charged $118 per night which is the 75th percentile.   Step 3 of 4 :   One of the motels was 1.3 standard deviations below the mean, what is the price of a single room at the motel? Round your answer to two decimal places.