# Question: A food processor wants to know whether the probability is

A food processor wants to know whether the probability is really 0.60 that a customer will prefer a new kind of packaging to the old kind. If, in a random sample, 7 of 18 customers prefer the new kind of packaging to the old kind, test the null hypothesis θ = 0.60 against the alter-native hypothesis θ ≠ 0.60 at the 0.05 level of significance.

**View Solution:**## Answer to relevant Questions

In a random sample of 600 cars making a right turn at a certain intersection, 157 pulled into the wrong lane. Use the 0.05 level of significance to test the null hypothesis that the actual proportion of drivers who make this ...In random samples, 46 of 400 tulip bulbs from one nursery failed to bloom and 18 of 200 tulip bulbs from another nursery failed to bloom. Use the θ2 statistic to test the null hypothesis θ1 = θ2 against the alternative ...Tests of the fidelity and the selectivity of 190 radios produced the results shown in the following table: Use the 0.01 level of significance to test the null hypothesis that fidelity is independent of selectivity. The following are the hours of operation to failure of 38 light bulbs. Use a suitable statistical computer program to test whether the mean failure time of such light bulbs is significantly less than 300 hours. Use the 0.01 ...Given a pair of random variables X and Y having the variances σ21 and σ22 and the correlation coefficient ρ, use Theorem 4.14 to express var(X/s1 + Y/s2) and var(X/s1 – Y/s2) in terms of σ1, σ2, and ρ. Then, making ...Post your question